1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 92.5583 78.9583 75.5083 86.6667 93.6333 88.0917 95.025 110.692 94.2833 82.2583 83.875 102.408 101.3 94.025 95.1333 102.525 107.708 130.583 161.333 127.3 Year $/ton