Dataset · Growth Lab at Harvard University
Complexity Outlook Index
30 years, 1995–2024 · 145 countries
The Complexity Outlook Index, from Harvard's Growth Lab, measures how many complex products lie close to what a country already exports — close meaning they draw on similar know-how. A high reading means plenty of nearby opportunities to move into more sophisticated goods; a low one means few.
This site holds every year from 1995 to 2024, read from Growth Lab at Harvard University’s own data and stored exactly as published.
Complexity Outlook Index · the file
- Newest
- Complexity Outlook Index, 2024
- Held
- 30 years · 4,319 rows
- Licence
- Public domain or CC0
0130 years
Every year
Every year comes from Growth Lab at Harvard University’s 2026 release, recalculated on one method. Each opens the full table for that year; each downloads as a CSV.
| Year | Countries | Change | Read | Download |
|---|---|---|---|---|
| Complexity Outlook Index, 2024Newest | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2023 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2022 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2021 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2020 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2019 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2018 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2017 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2016 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2015 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2014 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2013 | 145 | ±0 | October 3, 2026 | CSV |
Show all 30 years
| Year | Countries | Change | Read | Download |
|---|---|---|---|---|
| Complexity Outlook Index, 2012 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2011 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2010 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2009 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2008 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2007 | 145 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2006 | 145 | +1 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2005 | 144 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2004 | 144 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2003 | 144 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2002 | 144 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2001 | 144 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 2000 | 144 | +4 | October 3, 2026 | CSV |
| Complexity Outlook Index, 1999 | 140 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 1998 | 140 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 1997 | 140 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 1996 | 140 | ±0 | October 3, 2026 | CSV |
| Complexity Outlook Index, 1995 | 140 | — | October 3, 2026 | CSV |
Every year in one file, one row per country per year: complexity-outlook-all-editions-nations-inquiry.csv
023 columns
What’s in the file
Every column, what it holds, how it is stored and what its values look like — what a reader needs before opening the file.
| Column | What it holds | Stored as | Range, 2024 | Distinct | Empty | Spread |
|---|---|---|---|---|---|---|
CountrycountryName | The country’s name, as this file spells it. | Text | — | 145 | 0 | |
ISO Codecountry_codeIdentifier | The ISO 3166-1 alpha-3 code, added by this site. Every table here joins on it. | Text · 3 letters | — | 145 | 0 | |
Complexity Outlook IndexcoiHeadline | The headline figure: Complexity Outlook Index (standardised; roughly −2.5 to +3). | Number · up to 3 decimals | -1.682 | 143 | 0 |
Profiled from the newest file. Range: the lowest and highest value, with the country holding it when only one does. Spread: countries in ten equal steps from lowest to highest. Neither end is better. The values describe a shape, not a score.
03145 countries across every year
Who is covered
How many countries each year holds, continent by continent, who joined and who left, and which places this site covers that the dataset never has.
| 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Africa | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Americas | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Asia | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 |
| Europe | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 |
| Oceania | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| All | 145 | 145 | 145 | 145 | 145 | 145 | 145 | 145 | 145 | 145 | 145 | 145 |
The newest 12 of 30 years.
Not in this dataset · 80 places this site covers
Growth Lab at Harvard University gives no figure for these in any year held here. It is the publisher’s choice of scope, and each place’s profile shows what is measured.
04Provenance
Where it comes from
The path from the publisher to this page, and what was checked and changed on the way.
1 · Publisher
Growth Lab at Harvard University
2 · Their file
Complexity Outlook Index 2024
3 · Read by this site
October 3, 2026
Imported by a script that parses each figure and writes it down unrounded.4 · Stored as
30 files, one per year
Each downloads as a CSV, or every year together as complexity-outlook-all-editions-nations-inquiry.csv5 · Used on
Its statistic page, and every profile it measures
Precision
The headline is stored to 3 decimals, as published.
Rounded by this site
Never. Tables on screen may show fewer decimals; the files never do.
Changed by this site
Reshaped into one row per country: regional and income-group totals are left out, only the columns listed are kept, each row gets its ISO 3166 code, and some country names are brought to one spelling. No value is recalculated, rescaled or rounded.
The Growth Lab's International Trade Data (HS, 92) deposit on Harvard Dataverse, dedicated to the public domain. Only the economies the Growth Lab admits to its own rankings in each year are shown — those that meet its thresholds for trade volume, population and data quality.
05Reuse
Licence and credit
What the publisher’s licence lets you do, what it asks of you, and a credit line and citation ready to copy.
Licence · checked October 3, 2026
- Share and redistribute it
- Adapt it and build on it
- Use it commercially
No conditions at all. Crediting the publisher is still the courteous thing to do.
A credit line
Source: Growth Lab at Harvard University, Complexity Outlook Index, via Nations Inquiry.
Cite this dataset
Growth Lab at Harvard University. Complexity Outlook Index, 1995–2024 [data set]. As held by Nations Inquiry, https://nationsinquiry.com/datasets/complexity-outlook
The publisher’s own citation: The Growth Lab at Harvard University. International Trade Data (HS, 92), doi:10.7910/DVN/T4CHWJ, Harvard Dataverse.
Plain-language summary, not legal advice. The licence text is what binds.
06Where it is used
Around the site
Where these numbers appear on this site, and the datasets nearest to it.
Charted
Complexity Outlook Index by countryWho is highest, the map, the spread, who rose and fell, and the records.
Subjects
Near neighbours
- GDP per Capita (PPP)World Bank Group · 36 held · 1990–2025
- Economic Complexity IndexGrowth Lab at Harvard University · 30 held · 1995–2024
- Liner Shipping Connectivity IndexUNCTAD · 21 held · 2006–2026
07Questions
Complexity Outlook Index: questions and answers
What is the Complexity Outlook Index?
The Complexity Outlook Index, from Harvard's Growth Lab, measures how many complex products lie close to what a country already exports — close meaning they draw on similar know-how. A high reading means plenty of nearby opportunities to move into more sophisticated goods; a low one means few.
Which years of the Complexity Outlook Index can I download?
All 30, from 1995 to 2024, each as a CSV file, or every year together in one CSV.
Does Growth Lab at Harvard University rank countries on it?
No, and this site does not order it either. The files hold values only.
Can I use it commercially?
Yes, under CC0 1.0, with credit to Growth Lab at Harvard University. The licence text is linked on this page.