Year   ExtAnom
1979      6.88
1980    -11.54
1981     -5.47
1982      4.35
1983     -5.65
1984     -2.94
1985      1.55
1986     -8.55
1987     -3.88
1988     -3.50
1989      4.45
1990     -3.32
1991      3.60
1992     -3.13
1993     -0.98
1994      2.39
1995      3.88
1996      7.53
1997      1.36
1998      2.11
1999      1.83
2000      9.03
2001      2.48
2002     -6.68
2003      6.41
2004      2.39
2005      2.58
2006     -4.81
2007     -3.32
2008      7.72
2009      6.60