Year   ExtAnom
1979      3.38
1980      3.23
1981      2.20
1982      4.19
1983     -0.44
1984      0.58
1985      4.63
1986     -0.59
1987      1.54
1988      0.66
1989     -4.56
1990     -2.21
1991     -0.67
1992     -2.58
1993     -0.44
1994      0.95
1995     -4.12
1996     -3.97
1997     -2.06
1998      1.47
1999      1.91
2000     -3.09
2001      0.88
2002     -3.53
2003     -4.41
2004     -7.50
2005     -4.49
2006     -7.21
2007     -5.22
2008     -3.16