Years
| Year | Releases |
|---|---|
| Unknown | 75 |
| Unknown | 472 |
| Unknown | 124 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 27 |
| 1987 | 142 |
| 1988 | 828 |
| 1989 | 2023 |
| 1990 | 2529 |
| 1991 | 2640 |
| 1992 | 2333 |
| 1993 | 1658 |
| 1994 | 1170 |
| 1995 | 417 |
| 1996 | 113 |
| 1997 | 38 |
| 1998 | 24 |
| 1999 | 24 |
| 2000 | 11 |
| 2001 | 7 |
| 2002 | 6 |
| 2003 | 6 |
| 2004 | 6 |
| 2005 | 76 |
| 2006 | 63 |
| 2007 | 1 |
| 2011 | 3 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 4 |
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2023 | 2 |
| 2024 | 1 |