分面浏览：发表日期 |
| 当前检索式 | ((ALL：research methods)) |
| 限定条件 | 无 |
| 2024 94 | 2023 354 | 2022 795 |
| 2021 1429 | 2020 1468 | 2019 1835 |
| 2018 1665 | 2017 1520 | 2016 1972 |
| 2015 1602 | 2014 1685 | 2013 1638 |
| 2012 1497 | 2011 1363 | 2010 2645 |
| 2009 1070 | 2008 848 | 2007 709 |
| 2006 618 | 2005 561 | 2004 440 |
| 2003 338 | 2002 271 | 2001 191 |
| 2000 208 | 1999 153 | 1998 221 |
| 1997 85 | 1996 90 | 1995 68 |
| 1994 53 | 1993 57 | 1992 35 |
| 1991 57 | 1990 38 | 1989 39 |
| 1988 21 | 1987 30 | 1986 15 |
| 1985 6 | 1984 6 | 1983 3 |
| 1982 4 | 1981 5 | 1977 1 |
