分面浏览：发表日期 |
| 当前检索式 | ((ALL：Statistics)) |
| 限定条件 | ((专题：北京大学)) |
| 2017 45 | 2016 88 | 2015 58 |
| 2014 59 | 2013 63 | 2012 60 |
| 2011 52 | 2010 34 | 2009 52 |
| 2008 31 | 2007 35 | 2006 39 |
| 2005 36 | 2004 32 | 2003 44 |
| 2002 10 | 2001 25 | 2000 15 |
| 1999 13 | 1998 18 | 1997 21 |
| 1996 6 | 1995 12 | 1994 3 |
| 1993 3 | 1992 5 | 1991 5 |
| 1990 2 | 1989 2 | 1988 2 |
| 1987 2 | 1986 1 | 1985 2 |
| 1984 1 |
