Trend series index

Police arrests only, counted by the number of arrests. The official table defines crime as reported crime, which is not the same as convictions.

Fire and special service calls combined, excluding ambulance calls. The official table publishes only the latest five years, so this series is shorter than the others.

Emergency calls only. Non-emergency and other calls are published separately and are not mixed into this series. The official table publishes only the latest five years.

Beds at year end, by district and institution type. Beds in Hospital Authority hospitals, private hospitals and correctional institutions serve different purposes and are not interchangeable.

Visitor arrivals by nationality or region. This is a different measure from all inbound passenger trips; the two must not be added or substituted for each other.

Sales value at current prices, not adjusted for price changes; it cannot substitute for the retail sales volume index.

Restaurant receipts value at current prices. Published quarterly; use the official annual figure rather than summing quarters yourself.

Official annual unemployment rate. The quarterly seasonally adjusted rate is a different series and must not be spliced onto this one.

The index base period is stated in the official table title; index levels and changes on different bases are not directly comparable.

The base period is stated in the official table title (see source). This is the index level, a different reading from the year-on-year percentage change: the two are not interchangeable, and the level must not be compared directly with an index on an older base.

Median monthly household income, all household sizes combined. Household income and individual employment income are different measures and cannot be converted into one another.

Labour force aged fifteen and over, all ages and both sexes combined. The labour force covers both the employed and the unemployed, so it is not the same as the number of employed persons.

The labour force as a percentage of the land-based non-institutional population aged fifteen and over. It differs from the unemployment rate, which is measured within the labour force only.

Registered marriages across all marriage types combined. Subtracting divorce decrees from this figure does not produce a net change in marriages.

Divorce decrees granted by the courts. It is a different measure from the crude divorce rate, which uses population as its denominator.

Nominal GDP at current market prices, total across expenditure components. GovHK publishes the same total rounded to hundreds of millions; it is a different measure from GDP per capita and the two cannot be converted into each other.

Secondary day-school students only, counted by school level. This is not the same measure as the school-age population in population statistics. The official table publishes only the latest few years.

Country parks only, excluding special areas and marine parks or reserves; this cannot substitute for the combined country parks and special areas figure.

Municipal solid waste delivered to disposal facilities only, excluding construction waste and recovered materials; it cannot be converted into a per-capita figure here.

Total annual fresh water supply. The daily average consumption figure is a different measure; the two are not directly interchangeable.

Annual mean computed from the Hong Kong Observatory open-data API daily mean temperature series (station=HKO); years with fewer than 300 usable days are omitted.

Derived from the Observatory daily maximum temperature series: the hottest single day of that year.

Counted by this site from the Observatory daily maximum series; the 33.0°C threshold is stated so the series can be compared year to year.

Counted by this site from the Observatory daily minimum series; the 28.0°C threshold is stated.

Annual total summed from the Observatory published daily total rainfall at the Hong Kong Observatory station. “Trace” (less than 0.05 mm) counts as zero, missing days are excluded, and years with fewer than 360 usable days are omitted.

Counted by this site from the Observatory daily total rainfall at the Hong Kong Observatory station: days with 50 mm or more. It is a single-station rainfall threshold, not the number of rainstorm warnings (those use multiple stations and forecasts across Hong Kong), and the two are not interchangeable.

Annual mean of the Rating and Valuation Department monthly private domestic price index, territory-wide (1999 = 100), computed by this site under a stated rule (mean of the twelve monthly readings, one decimal place); years with fewer than twelve months are omitted. The index measures relative price levels — it is not an average transaction price and cannot be converted into an average dollar price.

Annual mean of the Rating and Valuation Department rental index for private domestic units, territory-wide (simple average of the twelve monthly readings, as the official report defines an annual index). The rental and price indices are separate series: subtracting one from the other does not produce a rental yield, and neither is adjusted for size, age or location.

Annual mean of the Rating and Valuation Department price index for selected popular developments (a fixed basket of estates). It is a different universe from the territory-wide all-classes index: the levels are not directly comparable, only each series’ own direction is meaningful, and one cannot be converted into the other.

Annual mean of the Rating and Valuation Department average price for Class A units (under 40 m²) on Hong Kong Island, in HK$ per square metre. The Department publishes these averages by class and region only — there is no single territory-wide average, and the three regions cannot be added or averaged into one. The Department also notes that average prices depend on the quality of the properties traded in the period, so they should be read alongside the price index.

Annual mean of the Rating and Valuation Department average price for Class A units (under 40 m²) in Kowloon, in HK$ per square metre. There is no official territory-wide average, and the regional figures cannot be combined into one.

Annual mean of the Rating and Valuation Department average price for Class A units (under 40 m²) in the New Territories, in HK$ per square metre. There is no official territory-wide average, and the regional figures cannot be combined into one.

The private domestic price index divided by the rental index for the same year (both are official indices, 1999 = 100). A rising ratio only means prices became more expensive relative to rents. This is not a rental yield: a yield needs actual rental income, prices and holding costs, and this site will not manufacture one from index points.

The Total column of the Rating and Valuation Department annual private domestic completions CSV, from 1985. Completions count newly built units; they are not net supply (demolitions are not deducted) and not take-up.

Annual mean of the Rating and Valuation Department monthly private domestic yield for Class A (under 40 m²). The official table also covers Classes B–E; this site publishes Class A only and says so. This is the official yield, not the site-made price-index-to-rent-index ratio (which is not a yield).

Environmental Protection Department annual municipal solid waste recovery quantity, municipal solid waste category only. Recovery and disposal are separate series; the recovery rate must come from the official published rate, not from dividing one series by the other.

This site deflates each year’s median household income to the latest year’s price level using the Composite CPI (official table 510-60001); the base year is the last point of the series. It is a site-computed real value, not an official real-income figure — use it for purchasing-power comparison only, not as nominal income.

This site deflates the Hong Kong Island Class A average price to the latest year’s price level using the Composite CPI (table 510-60001). It is a site-computed real value, not an official figure; the official average price itself depends on the quality of properties traded, so read it alongside the price index.

Education Bureau student enrolment by level: the official file reports thousands, multiplied by one thousand here; academic years are labelled by their start year (AY2020/21 → 2020). Only the years in the file are covered — not a long-run trend.

Education Bureau student enrolment by level: thousands converted to students; academic years labelled by start year. Only the years in the file are covered.

Education Bureau student enrolment by level: thousands converted to students; academic years labelled by start year. Only the years in the file are covered.

Education Bureau student enrolment by level: thousands converted to students; academic years labelled by start year. Only the years in the file are covered.

A demand signal for outside interest in Hong Kong — not an official statistic and not usable as a population or economic indicator.

A demand signal for English-language interest in Hong Kong — not an official statistic.

A demand signal for Japanese-language interest in Hong Kong.

A demand signal for Korean-language interest in Hong Kong.

Judiciary GIA annual all-court totals: 2021 510,388; 2022 513,615; 2023 542,904; 2024 552,166; 2025 536,566.

Official EAC final figures. The 2020 term was postponed to 2021 (that year’s figure is the 2020 term); 2025 is the following term.

Labour Department annual publication (frozen at 4,630 in 2021, then raised yearly). Official values only; no interpolation.

WSD water-resource data (million m³): 2022 809.69; 2023 819.85; 2024 818.36.