2018 tables: Countries/territories

The 2018 tables are based on Nature Index data from 1 January 2017 to 31 December 2017.

Table criteria

# Country/territory Share 2016 Share 2017 Count 2017 Change in Adjusted Share 2016-2017*
1 United States of America (USA) 20,010.86 19,999.69 27,350 -1.5%
2 China 8,097.06 9,270.61 12,842 12.9%
3 Germany 4,519.10 4,444.14 8,215 -3.1%
4 United Kingdom (UK) 3,738.28 3,695.92 7,330 -2.6%
5 Japan 3,177.59 3,105.12 4,782 -3.7%
6 France 2,330.13 2,255.28 4,746 -4.6%
7 Canada 1,581.47 1,577.72 3,130 -1.7%
8 Switzerland 1,350.52 1,360.53 3,059 -0.7%
9 South Korea 1,337.44 1,302.46 2,129 -4.0%
10 Spain 1,213.89 1,110.28 2,516 -9.8%
11 Australia 1,174.32 1,106.25 2,440 -7.1%
12 Italy 1,046.13 1,045.72 2,552 -1.5%
13 India 905.20 958.36 1,467 4.4%
14 Netherlands 936.97 923.05 2,233 -2.9%
15 Sweden 585.70 607.02 1,650 2.2%
16 Singapore 556.45 599.11 1,136 6.1%
17 Israel 593.89 588.70 1,199 -2.3%
18 Taiwan 443.17 425.63 949 -5.3%
19 Russia 398.22 413.52 1,300 2.4%
20 Belgium 455.01 405.88 1,114 -12.1%
21 Austria 335.24 375.93 1,031 10.5%
22 Denmark 395.92 365.72 1,055 -9.0%
23 Brazil 251.59 262.94 863 3.0%
24 Poland 207.09 220.28 813 4.8%
25 Finland 204.59 196.75 617 -5.2%
26 Czech Republic 171.74 195.50 638 12.2%
27 Norway 162.10 193.18 653 17.5%
28 Saudi Arabia 137.40 140.45 465 0.8%
29 Portugal 141.68 135.62 534 -5.6%
30 New Zealand 121.99 130.27 391 5.3%
31 Ireland 133.32 127.06 471 -6.1%
32 Chile 83.54 100.90 371 19.1%
33 Argentina 93.61 98.09 310 3.3%
34 Iran 91.02 88.14 243 -4.5%
35 Greece 88.46 83.09 398 -7.4%
36 Mexico 79.71 80.79 350 -0.1%
37 Hungary 77.32 77.57 340 -1.1%
38 South Africa 62.48 70.01 353 10.4%
39 Turkey 73.47 59.64 327 -20.0%
40 Slovenia 36.16 40.99 179 11.7%
41 Pakistan 28.74 40.21 197 37.9%
42 Thailand 29.38 37.57 223 26.1%
43 Croatia 21.07 28.49 180 33.3%
44 Iceland 23.08 26.83 107 14.6%
45 Estonia 22.16 26.11 152 16.1%
46 Romania 25.28 22.05 235 -14.0%
47 Ukraine 27.52 21.43 238 -23.2%
48 Luxembourg 20.57 18.97 72 -9.1%
49 United Arab Emirates 17.33 18.81 73 7.0%
50 Colombia 24.37 17.38 270 -29.7%

Footnote

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.

*The change in adjusted Share accounts for the small annual variation in the total number of articles in Nature Index journals. Share values have been adjusted to 2020 levels to calculate the percentage change. For more information on the adjustment, please see the Adjusted metric explainer.