Table 2.
Characteristics of the top 15 productive countries/territories.
| Country/Territory | TP | HCPs/APs (%) | TC | CPP | CNCI | ICP (%) | MC (P) | |||
|---|---|---|---|---|---|---|---|---|---|---|
| HCPs (R) | % | APs (R) | % | |||||||
| USA | 2812 (1) | 36.1 | 139,409 (1) | 24.9 | 2.02 | 557,240 | 198 | 10.59 | 1727 (61) | Mainland China (546) |
| Mainland China | 2322 (2) | 29.8 | 116,149 (2) | 20.8 | 2 | 302,799 | 130 | 9.99 | 1119 (48) | USA (546) |
| England | 1122 (3) | 14.4 | 35,693 (3) | 6.4 | 3.14 | 201,666 | 180 | 10.23 | 869 (77) | USA (477) |
| Germany | 844 (4) | 10.8 | 32,013 (5) | 5.7 | 2.64 | 148,892 | 176 | 10.61 | 720 (85) | USA (380) |
| Australia | 800 (5) | 10.3 | 28,763 (6) | 5.1 | 2.78 | 134,133 | 168 | 10.34 | 672 (84) | USA (343) |
| Canada | 667 (6) | 8.6 | 32,182 (4) | 5.8 | 2.07 | 128,792 | 193 | 10.63 | 537 (81) | USA (376) |
| Netherlands | 640 (7) | 8.2 | 16,912 (11) | 3 | 3.78 | 121,118 | 189 | 11.25 | 544 (85) | USA (267) |
| France | 551 (8) | 7.1 | 23,251 (10) | 4.2 | 2.37 | 99,505 | 181 | 9.93 | 487 (88) | USA (280) |
| Spain | 494 (9) | 6.3 | 27,637 (7) | 4.9 | 1.79 | 92,385 | 187 | 10.16 | 387 (78) | USA (160) |
| Italy | 463 (10) | 5.9 | 23,348 (9) | 4.2 | 1.98 | 85,244 | 184 | 10.35 | 393 (85) | USA (188) |
| Switzerland | 450 (11) | 5.8 | 11,744 (18) | 2.1 | 3.83 | 96,559 | 215 | 11.87 | 372 (83) | USA (217) |
| Sweden | 351 (12) | 4.5 | 12,882 (16) | 2.3 | 2.72 | 65,002 | 185 | 9.58 | 302 (86) | USA (148) |
| India | 304 (13) | 3.9 | 24,057 (8) | 4.3 | 1.26 | 45,052 | 148 | 8.07 | 197 (65) | USA (72) |
| South Korea | 281 (14) | 3.6 | 15,516 (13) | 2.8 | 1.81 | 47,481 | 169 | 10.35 | 192 (68) | USA (84) |
| Japan | 262 (15) | 3.4 | 16,709 (12) | 3 | 1.57 | 50,748 | 194 | 11.62 | 221 (84) | USA (146) |
TP: the number of publications; HCPs: highly cited papers; APs: all papers; R: rank of each country/territory according to the number of publications; %: percentage share of papers in all HCPs or APs; TC: total citations; CPP: citations per paper; CNCI: Category Normalized Citation Impact; ICP (%): the number and percentage of international collaborative HCPs, MC (P): major collaborative country/territory (number of collaborative HCPs).