I was thinking that myself tonight that he would have overtaken Parrott now: I've obviously missed one, but in chronological order here's 11 deciders:
1987 Johnson lost 13-12 (came back from 12-8 down)
1988 White lost 13-12 (cracking standard - perhaps the best game seen at crucible at that time 26 breaks over 50 in the match)
1989 Wilkinson won 10-9 (easy to forget what a good player the world matchplay champ was)
1994 White won 18-17 (missed black anyone)
2002 Doherty won 13-12 (doherty had 8 cracking matches at crucible in 2002 and 2003
2002 Ebdon lost 18-17
2004 Pinches won 13-12 (Pinches beat White in Rd 1 and this shows with all respect shows how hendry had slipped)
2006 Bond lost 10-9 (Bond in off on final black meant a respot, but poor safety from the maestro)
2008 Allen won 10-9 from 6-3 needing two snooker and 9-7 down - Allen went inoff potting a red at 9-9 and the maestro knocked in a century)
2010 Zhang won (from 9-7 down)
2011 Perry won
Legend