1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 85.25 74.6667 72.1 82.2667 87.9917 83.2083 90.4167 102.825 89.6917 78.6583 80.3667 95.2083 93.825 88.7833 89.4667 96.2583 104.775 123.5 148.333 121.2 Year $/ton