博文
美国、英国、日本与中国论文自引量比较分析
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| United States | United Kingdom | Japan | China | |
|---|---|---|---|---|
| 1996 | 4,009,770 | 435,877 | 398,060 | 64,930 |
| 1997 | 3,997,614 | 445,973 | 410,218 | 76,832 |
| 1998 | 4,035,161 | 466,888 | 421,353 | 94,398 |
| 1999 | 3,944,359 | 463,735 | 425,579 | 116,256 |
| 2000 | 3,875,548 | 473,653 | 418,438 | 150,203 |
| 2001 | 3,630,755 | 431,517 | 397,734 | 177,558 |
| 2002 | 3,413,091 | 421,588 | 374,283 | 215,676 |
| 2003 | 3,289,149 | 430,323 | 371,328 | 274,803 |
| 2004 | 2,835,658 | 394,155 | 332,352 | 333,015 |
| 2005 | 2,514,684 | 362,498 | 285,159 | 377,115 |
| 2006 | 2,079,134 | 311,250 | 234,898 | 375,209 |
| 2007 | 1,593,426 | 251,853 | 179,606 | 335,539 |
| 2008 | 1,014,480 | 167,670 | 113,046 | 244,351 |
| 2009 | 447,617 | 82,079 | 49,722 | 113,105 |
https://blog.sciencenet.cn/blog-280034-414675.html
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