2016 tables: Countries/territories

Table criteria

The 2016 tables are based on Nature Index data from 1 January 2015 to 31 December 2015.

2015 Country/territory Share 2015
1 United States of America (USA) 20773.32
2 China 7679.62
3 Germany 4682.2
4 United Kingdom (UK) 3806.44
5 Japan 3417.73
6 France 2440.94
7 Canada 1777.68
8 South Korea 1419.43
9 Switzerland 1348.57
10 Australia 1211.63
11 Spain 1205.47
12 Italy 1183.33
13 India 944.12
14 Netherlands 869.66
15 Sweden 661.59
16 Israel 612.9
17 Singapore 590.95
18 Taiwan 499.71
19 Belgium 416.51
20 Russia 388.36
21 Denmark 373.8
22 Austria 321.49
23 Poland 248.56
24 Brazil 238.12
25 Finland 222.94
26 Czech Republic 161.02
27 Norway 152.89
28 Portugal 144.34
29 New Zealand 129.57
30 Ireland 128.03
31 Saudi Arabia 124.43
32 Greece 104.04
33 Chile 103.06
34 Argentina 97.32
35 Hungary 90.35
36 Mexico 79.27
37 Turkey 76.95
38 South Africa 75.68
39 Iran 69.3
40 Slovenia 47.31
41 Ukraine 32.94
42 Thailand 32.77
43 Romania 27.43
44 Iceland 23.92
45 Pakistan 23.3
46 Croatia 20.57
47 Estonia 18.49
48 Colombia 17.17
49 Cyprus 16.82
50 Serbia 16.15

Each year, the Nature Index publishes tables based on counts of high-quality research outputs in the previous calendar year. Users please note:

  1. The data behind the tables are based on a relatively small proportion of total research papers, they cover the natural sciences only and outputs are non-normalized (that is, they don’t reflect the size of the country or institution, or its overall research output).
  2. The Nature Index is one indicator of institutional research performance. The metrics of Count and Share used to order Nature Index listings are based on an institution’s or country’s publication output in 82 natural-science journals, selected on reputation by an independent panel of leading scientists in their fields.
  3. Nature Index recognizes that many other factors must be taken into account when considering research quality and institutional performance; Nature Index metrics alone should not be used to assess institutions or individuals.
  4. Nature Index data and methods are transparent and available under a creative commons licence at natureindex.com.

The Nature Index database undergoes regular updating, corrections, adjustment of institutional hierarchies, and removal of retracted papers and thus the live website can differ from the frozen annual tables.