分面浏览：发表日期 |
| 当前检索式 | ((ALL：observed data)) |
| 限定条件 | 无 |
| 2024 37 | 2023 103 | 2022 180 |
| 2021 337 | 2020 421 | 2019 742 |
| 2018 1004 | 2017 1003 | 2016 941 |
| 2015 919 | 2014 840 | 2013 798 |
| 2012 745 | 2011 603 | 2010 818 |
| 2009 490 | 2008 472 | 2007 473 |
| 2006 368 | 2005 324 | 2004 273 |
| 2003 208 | 2002 182 | 2001 158 |
| 2000 133 | 1999 85 | 1998 66 |
| 1997 66 | 1996 50 | 1995 27 |
| 1994 23 | 1993 24 | 1992 31 |
| 1991 25 | 1990 9 | 1989 7 |
| 1988 1 | 1987 4 | 1986 6 |
| 1985 5 | 1983 2 | 1982 1 |
| 1981 1 | 1980 1 |
