Period WC GL Auto FL
1991 – 1995 4.08 2.27 4.61 1.57
1996 – 2000 2.79 1.79 3.45 2.01
2001 – 2005 3.23 2.04 3.86 2.60
2006 – 2010 4.36 1.82 2.85 4.01