Since we’re in the data sharing mode, here is some data of mine (no direct link available), but it is based directly on PGC website data. I would tend to question the 2005 results, as the PGC Buck Harvest number of 120,500 is too much of a “round number” to suit my taste.

Year ….... Buck Harvest success / general tag
1998 …... 16.9%
1999 ……. 18.8%
2000 ……. 19.5%
2001 ……. 19.3%
2002 ……. 16.2%
2003 ……. 13.9%
2004 ……. 12.2%
2005 ……. 12.4%