1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
12.2075
11.055
11.8767
11.7967
12.0042
11.8342
13.3925
12.0475
14.2042
12.4333
9.74
13.1008
10.4167
11.4192
15.3925
14.045
11.8875
18.0408
17.4358
10.722
Announced Class III Price
Year
$/cwt