Year	Yards
1990	308.6
1991	306.8
1992	298.2
1993	310.6
1994	317.9
1995	328.9
1996	316.4
1997	314.9
1998	317.7
1999	318.8
2000	319.4
2001	317.6
2002	328.4
2003	318.3
2004	327.2
2005	315.9
2006	322.1
2007	325.2
2008	327.2
2009	335.1
2010	336
2011	346.8
2012	347.2
2013	348.5