| Year | Volume | Number | Holdings | ||
|---|---|---|---|---|---|
| 2003 | 70 | 2 | Yes | ||
| 2003 | 70 | 1 | Yes | ||
| 2002 | 69 | 4 | Yes | ||
| 2002 | 69 | 3 | Yes | ||
| 2002 | 69 | 2 | Yes | ||
| 2002 | 69 | 1 | Yes | ||
| 2001 | 68 | 4 | Yes | ||
| 2001 | 68 | 3 | Yes | ||
| 2001 | 68 | 2 | Yes | ||
| 2001 | 68 | 1 | Yes | ||
| 2000 | 67 | 1 -4 | Yes | ||
| 1999 | 66 | 1 -4 | Yes | ||
| 1998 | 65 | 1 -4 | Yes | ||
| 1995-1997 | 62-64 | 1 -4 | No | ||
| 1986-1994 | 53-61 | 1 -4 | Yes | ||
| 1984/1985 | 51/52 | 4 /1 | Yes | ||
| 1984/1985 | 51/52 | 2 -4 | Yes | ||
| 1984 | 51 | 1 -3 | Yes | ||
| 1974-1983 | 41-50 | 1 -4 | Yes | ||
| 1973 | 40 | 1 -3 | Yes | ||
| 1970-1972 | 37-39 | 1 -4 | Yes |