Years
| Year | Releases |
|---|---|
| Unknown | 96 |
| Unknown | 454 |
| Unknown | 453 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 28 |
| 1987 | 154 |
| 1988 | 860 |
| 1989 | 2078 |
| 1990 | 2742 |
| 1991 | 3002 |
| 1992 | 2558 |
| 1993 | 1776 |
| 1994 | 1197 |
| 1995 | 473 |
| 1996 | 119 |
| 1997 | 42 |
| 1998 | 26 |
| 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 | 5 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 3 |