博文
美国、英国、日本与中国国际合作论文量比较分析
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| United States | United Kingdom | Japan | China | |
|---|---|---|---|---|
| 1996 | 22.310 | 30.206 | 17.527 | 19.262 |
| 1997 | 21.701 | 30.124 | 18.265 | 20.075 |
| 1998 | 22.088 | 30.835 | 18.424 | 18.215 |
| 1999 | 20.711 | 29.830 | 16.587 | 17.486 |
| 2000 | 20.303 | 28.650 | 16.494 | 16.785 |
| 2001 | 18.739 | 26.938 | 15.001 | 11.745 |
| 2002 | 19.069 | 28.030 | 15.599 | 14.668 |
| 2003 | 25.675 | 37.743 | 21.574 | 20.161 |
| 2004 | 30.190 | 41.121 | 24.698 | 18.328 |
| 2005 | 31.114 | 42.574 | 25.767 | 15.377 |
| 2006 | 30.951 | 42.675 | 26.744 | 15.052 |
| 2007 | 31.618 | 43.701 | 27.148 | 15.397 |
| 2008 | 32.129 | 45.205 | 26.995 | 15.444 |
| 2009 | 31.351 | 45.719 | 26.341 | 15.003 |
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