year trend
 year trend
 year trend
 year trend
 1995.5     0.081
 1996.5     0.283
 1997.5     0.664
 1998.5     0.725
 1999.5     0.963
 2000.5     1.123
 2001.5     1.014
 2002.5     1.002
 2003.5     0.898
 2004.5     0.442
 2005.5     0.234