分面浏览：发表日期 |
| 当前检索式 | ((ALL：observation data)) |
| 限定条件 | 无 |
| 2024 15 | 2023 43 | 2022 98 |
| 2021 215 | 2020 229 | 2019 353 |
| 2018 417 | 2017 367 | 2016 464 |
| 2015 415 | 2014 372 | 2013 334 |
| 2012 235 | 2011 228 | 2010 321 |
| 2009 210 | 2008 220 | 2007 134 |
| 2006 154 | 2005 124 | 2004 94 |
| 2003 68 | 2002 62 | 2001 42 |
| 2000 31 | 1999 28 | 1998 17 |
| 1997 15 | 1996 18 | 1995 9 |
| 1994 13 | 1993 10 | 1992 5 |
| 1991 8 | 1990 1 | 1989 4 |
| 1988 1 | 1987 1 | 1986 2 |
| 1984 2 | 1981 1 |
