| Country (Number) |
| United States of America | 92,969 in 2020 | OECD |
| United Kingdom | 18,159 in 2020 | OECD |
| Brazil | 15,337 in 2020 | OECD |
| France | 15,010 in 2017 | OECD |
| Japan | 13,608 in 2020 | OECD |
| Spain | 9,210 in 2021 | OECD |
| Italy | 8,620 in 2017 | OECD |
| Turkey | 8,582 in 2019 | OECD |
| Germany | 6,090 in 2020 | OECD |
| Finland | 5,679 in 2020 | OECD |
| Republic of Korea | 5,272 in 2020 | OECD |
| Canada | 4,177 in 2019 | OECD |
| Australia | 3,540 in 2021 | OECD |
| Netherlands | 2,593 in 2020 | OECD |
| Poland | 2,276 in 2020 | OECD |
| Sweden | 2,187 in 2018 | OECD |
| Russian Federation | 1,623 in 2019 | OECD |
| Belgium | 1,606 in 2018 | OECD |
| Czech Republic | 1,560 in 2021 | OECD |
| Romania | 1,530 in 2019 | OECD |
| Chile | 1,482 in 2020 | OECD |
| Mexico | 1,348 in 2020 | OECD |
| Colombia | 1,271 in 2020 | OECD |
| Portugal | 1,155 in 2019 | OECD |
| Argentina | 1,090 in 2020 | OECD |
| Switzerland | 963 in 2020 | OECD |
| Denmark | 904 in 2020 | OECD |
| Austria | 823 in 2021 | OECD |
| Norway | 603 in 2016 | OECD |
| South Africa | 510 in 2018 | OECD |
| Slovakia | 506 in 2019 | OECD |
| Israel | 481 in 2020 | OECD |
| New Zealand | 428 in 2016 | OECD |
| Croatia | 379 in 2020 | OECD |
| Ireland | 376 in 2018 | OECD |
| Peru | 371 in 2020 | OECD |
| Hungary | 364 in 2019 | OECD |
| Greece | 320 in 2020 | OECD |
| Slovenia | 303 in 2020 | OECD |
| Lithuania | 188 in 2021 | OECD |
| Costa Rica | 165 in 2020 | OECD |
| Iceland | 120 in 2021 | OECD |
| Estonia | 85 in 2021 | OECD |
| Bulgaria | 53 in 2020 | OECD |
| Latvia | 42 in 2021 | OECD |
| Luxembourg | 39 in 2021 | OECD |
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