Line 1, .
Point 1, 1997 is 58.8.
Point 2, 1998 is 63.1.
Point 3, 1999 is 58.1.
Point 4, 2000 is 56.2.
Point 5, 2001 is 59.2.
Point 6, 2002 is 55.6.
Point 7, 2003 is 62.
Point 8, 2004 is 74.1.
Point 9, 2005 is 70.8.
Point 10, 2006 is 64.4.
Point 11, 2007f is 76.4.
Point 12, 2008f is 74.
Line 2, .
Point 1, 1997 is 63.97.
Point 2, 1998 is 63.97.
Point 3, 1999 is 63.97.
Point 4, 2000 is 63.97.
Point 5, 2001 is 63.97.
Point 6, 2002 is 63.97.
Point 7, 2003 is 63.97.
Point 8, 2004 is 63.97.
Point 9, 2005 is 63.97.
Point 10, 2006 is 63.97.
Point 11, 2007f is 63.97.
Point 12, 2008f is 63.97.