Year   ExtAnom
1979      6.53
1980     -4.31
1981      0.60
1982      1.11
1983     -3.52
1984      0.75
1985      1.11
1986     -3.81
1987     -3.81
1988     -1.71
1989      2.41
1990     -0.63
1991     -2.29
1992     -3.59
1993     -1.64
1994      2.12
1995      0.02
1996      3.93
1997     -1.21
1998      1.03
1999      2.77
2000      4.14
2001      0.53
2002     -6.48
2003      4.07
2004      3.78
2005      0.75
2006      0.75
2007      0.02
2008      4.87