Table 1 Number of studies (n = 177) per continent and country included in the systematic map database
Continent | Country | # |
|---|---|---|
Asia | China | 7 |
Japan | 4 | |
Korea, Republic of | 3 | |
Pakistan | 2 | |
India | 1 | |
Europe | Finland | 16 |
Belgium | 13 | |
Netherlands | 9 | |
France | 7 | |
Germany | 5 | |
Denmark | 4 | |
Poland | 4 | |
United Kingdom | 4 | |
Italy | 3 | |
Sweden | 3 | |
Lithuania | 2 | |
Russia | 2 | |
Czech Republic | 1 | |
Ireland | 1 | |
Norway | 1 | |
Spain | 1 | |
North America | United States | 36 |
Canada | 14 | |
South America | Brazil | 3 |
Argentina | 2 | |
Chile | 2 | |
No location stated | 27 | |