分面浏览：发表日期 |
| 当前检索式 | ((ALL：Hardness)) |
| 限定条件 | 无 |
| 2024 1 | 2023 2 | 2022 17 |
| 2021 37 | 2020 70 | 2019 108 |
| 2018 146 | 2017 152 | 2016 136 |
| 2015 106 | 2014 114 | 2013 88 |
| 2012 108 | 2011 96 | 2010 243 |
| 2009 67 | 2008 69 | 2007 40 |
| 2006 39 | 2005 31 | 2004 21 |
| 2003 10 | 2002 16 | 2001 12 |
| 2000 8 | 1999 2 | 1998 4 |
| 1997 2 | 1996 2 | 1995 1 |
| 1994 1 | 1992 1 | 1991 1 |
| 1990 1 |
