How many years of comparable data are there for Hong Kong and Italy?

35 years are reported by both, from 1991 to 2025.

Where does this data come from?

Statizoid (derived), published as Gross Domestic Product, GDP in millions constant 2021 international $ at PPP (ILO modelled estimates), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Hong Kong vs Italy: Gross Domestic Product, GDP in millions constant 2021 international $

Hong Kong

0 units per US$ of GDP

in 2025

Italy

0 units per US$ of GDP

in 2025

Hong Kong rank

158th

Italy rank

155th

Gross Domestic Product, GDP in millions constant 2021 international $ over time

Hong Kong
Italy

How they compare

Italy currently reports 0 units per US$ of GDP against 0 units per US$ of GDP in Hong Kong, a difference of 0 units per US$ of GDP.

The two have swapped places 3 times across 35 shared years of data; in 1991 it was Hong Kong ahead.

Hong Kong ranks 158th and Italy ranks 155th of 185 countries.

Across the 4 decades both report, Hong Kong averaged higher in 1 and Italy in 3.

Head to head by decade

Decade	Hong Kong	Italy	Difference	Ahead
1990s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Italy
2000s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Italy
2010s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Hong Kong
2020s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Italy

Averages of every year both report within each decade.

Frequently asked questions

Which has higher gross domestic product, gdp in millions constant 2021 international $, Hong Kong or Italy?: Italy, at 0 units per US$ of GDP against 0 units per US$ of GDP in Hong Kong as of 2025.
What is the difference in gross domestic product, gdp in millions constant 2021 international $ between Hong Kong and Italy?: 0 units per US$ of GDP, with Italy ahead.
How many years of comparable data are there for Hong Kong and Italy?: 35 years are reported by both, from 1991 to 2025.
How do Hong Kong and Italy rank globally for gross domestic product, gdp in millions constant 2021 international $?: Hong Kong ranks 158th and Italy ranks 155th of 185 countries.
Where does this data come from?: Statizoid (derived), published as Gross Domestic Product, GDP in millions constant 2021 international $ at PPP (ILO modelled estimates), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Hong Kong vs Italy: Gross Domestic Product, GDP in millions constant 2021 international $. Statizoid, drawing on Statizoid (derived). Retrieved 24 September 2026, from https://economy.statizoid.com/compare/gross-domestic-product-gdp-in-millions-constant-2021-international-at-ppp-ilo-modelled-3/hong-kong-sar-china/italy/

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<a href="https://economy.statizoid.com/compare/gross-domestic-product-gdp-in-millions-constant-2021-international-at-ppp-ilo-modelled-3/hong-kong-sar-china/italy/">Hong Kong vs Italy: Gross Domestic Product, GDP in millions constant 2021 international $</a> — Statizoid

About this data

Indicator: Gross Domestic Product, GDP in millions constant 2021 international $ at PPP (ILO modelled estimates), per unit of GDP
Unit: units per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 188 places, 6,436 data points, 1991–2025
Last refreshed: 16 September 2026

Gross Domestic Product, GDP in millions constant 2021 international $ at PPP (ILO modelled estimates) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.