The 2006 numbers are still changing as these are still available from the mint. Also, the 2005 numbers here might be low as the mint started selling the 05 silver sets again earlier this year.
Eric
EAC member since 2011, one third of the way through my 1793 large cent type set
Comments
Silver Proof Sets:
1999 S 804,565
2000 S 965,421
2001 S 889,697
2002 S 892,229
2003 S 1,125,755
2004 S 1,187,673
2005 S 1,060,664
2006 S 985,644
Clad Proof Sets:
1999-S 2,543,401
2000-S 3,082,572
2001-S 2,294,909
2002-S 2,319,766
2003-S 2,172,684
2004-S 1,804,396
2005-S 2,275,000
2006-S 1,932,405
The 2006 numbers are still changing as these are still available from the mint. Also, the 2005 numbers here might be low as the mint started selling the 05 silver sets again earlier this year.
Eric