Year   ExtAnom
1979      2.83
1980     -1.69
1981      0.63
1982     -0.72
1983     -2.67
1984      2.46
1985     -1.69
1986     -3.34
1987     -0.41
1988     -0.35
1989     -1.39
1990     -2.00
1991     -0.96
1992      1.18
1993      0.20
1994      2.70
1995     -1.02
1996      1.30
1997      0.32
1998     -0.04
1999      2.40
2000      2.28
2001     -1.08
2002     -2.67
2003      3.01
2004      1.91
2005      1.73
2006      1.06
2007      0.51
2008      1.18