| Year | Volume | Number | Holdings | ||
|---|---|---|---|---|---|
| 2012 | 88 | Yes | |||
| 2011 | 87 | Yes | |||
| 2010 | 86 | Yes | |||
| 2009 | 85 | Yes | |||
| 2008 | 84 | Yes | |||
| 2007 | 83 | 1 /4 | Yes | ||
| 2006 | 82 | 1 /4 | Yes | ||
| 2005 | 81 | 1 /4 | Yes | ||
| 2004 | 80 | 1 /4 | Yes | ||
| 2003 | 79 | 1 /4 | Yes | ||
| 2002 | 78 | 1 /4 | Yes | ||
| 2001/2002 | 77 | 1 -4 | Yes | ||
| 2000 | 76 | 3 /4 | Yes | ||
| 2000 | 76 | 1 /2 | Yes | ||
| 1999 | 75 | 1 -4 | Yes | ||
| 1997/1998 | 74 | 1 -4 | Yes | ||
| 1995/1996 | 73 | 1 -4 | Yes | ||
| 1994 | 72 | 1 -4 | Yes | ||
| 1982-1993 | 60-71 | 1 -4 | Yes | ||
| 1939-1981 | 31-59 | 1 -4 | Yes | ||
| 1909-1938 | 1-30 | 1 -4 | Yes |