How many NHL video games are there

There are 21 NHL Games for now

1. NHL 93 (1992) 9. NHL 2001 (2000) 17. NHL 09 (2008)
2. NHL 94 (1993) 10. NHL 2002 (2001) 18. NHL 10 (2009)
3. NHL 95 (1994) 11. NHL 2003 (2002) 19. NHL 11 (2010)
4. NHL 96 (1995) 12. NHL 2004 (2003) 20. NHL 12 (2011)
5. NHL 97 (1996) 13. NHL 05 (2004) 21. NHL 13 (2012)
6. NHL 98 (1997) 14. NHL 06 (2005)
7. NHL 99 (1998) 15. NHL 07 (2006)
8. NHL 2000 (1999) 16. NHL 08 (2007)