Year   ExtAnom
1979      0.20
1980      0.09
1981      0.81
1982      0.20
1983     -2.56
1984      0.37
1985     -0.24
1986     -1.90
1987     -0.57
1988      0.20
1989     -1.84
1990     -0.68
1991      0.59
1992      0.59
1993     -1.57
1994      0.92
1995      0.70
1996      0.37
1997     -0.29
1998      0.59
1999      1.03
2000      2.97
2001     -0.18
2002     -3.56
2003     -0.13
2004      0.70
2005      1.03
2006      1.42
2007     -0.29
2008     -0.79