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Data for 2015

State Capacity Index, 2015

2015, as Jonathan K. Hanson (University of Michigan) and Rachel Sigman (Naval Postgraduate School)’s 2020 release gives it · stored as published, never rewritten

State Capacity Index, 2015 covers 166 countries on 2 measures. Denmark is highest, at 2.6970; Somalia is lowest, at -2.0960. The middle country reads 0.4867. Against 2014, 165 values changed (78 up, 87 down), the same countries are covered.

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State Capacity Index · Data for 2015

HighestDenmark

2.6970

LowestSomalia

-2.0960

Shaded by value in five groups of equal size, darkest at the better end. A higher value is the better result.

01Position · derived

The table

Every country and every column of State Capacity Index, 2015, as published. Jonathan K. Hanson (University of Michigan) and Rachel Sigman (Naval Postgraduate School) ranks nobody on this measure; the position is derived here by ordering the published values. “=” marks a shared position.

Showing 25 of 166 countries · select a heading to sort

State Capacity Index, 2015: every country, as published by Jonathan K. Hanson (University of Michigan) and Rachel Sigman (Naval Postgraduate School).
derived
1DenmarkDNKNorthern Europe2.69700.342927
2NorwayNORNorthern Europe2.52700.346107
3AustriaAUTWestern Europe2.47900.351768
4BelgiumBELWestern Europe2.37900.343734
5SwedenSWENorthern Europe2.35400.343438
6FinlandFINNorthern Europe2.33700.343133
7GermanyDEUWestern Europe2.30100.345743
8SwitzerlandCHEWestern Europe2.27200.338663
9New ZealandNZLAustralia and New Zealand2.23500.348788
10AustraliaAUSAustralia and New Zealand2.21800.347247
11NetherlandsNLDWestern Europe2.21300.346664
12CanadaCANNorthern America2.09500.339500
13IrelandIRLNorthern Europe2.00900.353900
14SpainESPSouthern Europe2.00300.348743
15South KoreaKOREastern Asia1.96100.314916
16United StatesUSANorthern America1.86000.348911
17United KingdomGBRNorthern Europe1.77700.345653
18PortugalPRTSouthern Europe1.77100.346370
19JapanJPNEastern Asia1.76800.313080
20IsraelISRWestern Asia1.75500.362574
21EstoniaESTNorthern Europe1.70200.323699
22SingaporeSGPSouth-eastern Asia1.67200.323027
23FranceFRAWestern Europe1.64200.344318
24SloveniaSVNSouthern Europe1.59700.326180
25CzechiaCZEEastern Europe1.58600.331054

02In 2015

At either end

The 5 countries at each end of the headline, then the highest and lowest on each other measure.

Highest

  1. 1Denmark2.6970
  2. 2Norway2.5270
  3. 3Austria2.4790
  4. 4Belgium2.3790
  5. 5Sweden2.3540

Lowest

  1. 166Somalia-2.0960
  2. 165Central African Republic-1.5410
  3. 164Yemen-1.4420
  4. 163South Sudan-1.3680
  5. 162Libya-1.3520

A higher value is the better result. The middle country reads 0.4867. “Shared” marks a value another country also holds.

Each measure’s ends

  • Standard deviation of the estimate

    HighestQatar0.378619

    LowestHonduras0.261655

    Middle country: 0.296600

032014 → 2015

Since 2014

What changed between 2014 and this one: who joined or left, and how far the headline moved.

  • +0 / −0countries joined / left
  • 165values changed, of 166 in both
  • 78 · 87rose · fell
  • 1unchanged

Rose most

Fell most

Both years come from the same release, so a difference here is a change in the data, not a revision of it. Every country’s full history is charted on the statistic page.

04Caveats

Read before you use

What this edition’s numbers are and are not, worked out from the file itself.

The site’s method

  • One year of the 2020 release

    Every year in this series comes from Jonathan K. Hanson (University of Michigan) and Rachel Sigman (Naval Postgraduate School)’s 2020 release, recalculated on one method. It can differ from what was first published for 2015.

  • 165 distinct values among 166

    Values are stored exactly as published, to 5 decimals. 2 countries share 0.6490. Countries sharing a value share a position too.

  • The position is ours

    Jonathan K. Hanson (University of Michigan) and Rachel Sigman (Naval Postgraduate School) publishes values only. The order here sorts the published values, and the page says so wherever it prints one.

  • Which end is better

    A higher value is the better result.

  • Nothing missing

    Every one of the 166 countries has every column.

05The files

Download and cite

The table as a file, digit for digit, what this site changed, and a citation for this edition.

Licence in full
  • .csv

    For a spreadsheet or code

    166 rows · 6.4 KB · UTF-8, opens in Excel

    Opens with 11 lines of source notes; the table starts on row 13.

    Download state-capacity-2015-nations-inquiry.csv
  • ↗

    The publisher’s original

    Jonathan K. Hanson (University of Michigan) and Rachel Sigman (Naval Postgraduate School)’s own file, on its own site.

    4103950

What this site changed: 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.

Licence: CC0 1.0. No conditions at all. Crediting the publisher is still the courteous thing to do.

Cite this edition

Jonathan K. Hanson (University of Michigan) and Rachel Sigman (Naval Postgraduate School) (2015). State Capacity Index, 2015 [data set], describing 2015. As held by Nations Inquiry, https://nationsinquiry.com/datasets/state-capacity/2015

0656 held

Other years

07Questions

State Capacity Index, 2015: questions and answers

Which country has the highest state capacity in State Capacity Index, 2015?

Denmark, at 2.6970, of the 166 countries in the file.

What year does State Capacity Index, 2015 describe?

2015.

How many countries does State Capacity Index, 2015 cover?

166.

Where can I download State Capacity Index, 2015?

On this page, as a CSV file holding every value exactly as published, or from the publisher’s own site, linked below.

Is State Capacity Index, 2015 the newest?

Yes, as of 2026-10-03, when it was read from the publisher.

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