#       I       II       III    IV       V       VI     VII     VIII    IX      X        XI     XII
1989    -3.0    -6.3   -12.4   -16.4   -22.2   -18.0   -19.4   -16.4   -13.0   -11.5   -10.0    -0.3
1990    -0.6    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
1991    -3.8    -3.8    -999   -10.7   -16.3   -13.8   -13.4   -15.5   -20.2   -14.1    -7.3    -0.2
1992    -0.3    -3.4    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
1993    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
1994    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
1995    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
1996    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
1997    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
1998    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
1999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
2000    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
2001    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
2002    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
2003    -999    -999    -999   -15.1   -19.8   -15.6   -21.1   -19.3   -16.4   -14.6    -8.2    -1.5
2004    -0.6    -2.9    -9.9   -15.6   -15.5   -19.1   -24.2   -17.9   -19.4   -12.4    -6.2    -999
2005    -0.6    -5.5    -8.4   -16.7   -19.2    -999   -22.3    -999    -999    -999    -8.0     0.2
2006    -1.7    -5.3    -9.1   -10.5   -19.8   -15.6   -21.3   -14.8   -16.9   -15.2    -6.7    -2.9
2007    -1.3    -4.0    -9.6   -11.6   -11.7   -14.3   -12.8   -15.4   -17.8   -15.3    -6.0    -3.6
2008    -3.5    -5.6   -10.3    -999   -14.0    -999   -16.9    -999    -999    -999    -999    -2.5
2009    -2.8    -4.3    -9.6   -15.6   -15.3   -16.2   -16.5   -20.4   -15.0   -15.3    -999    -3.6
2010    -0.2    -4.2    -5.1   -17.9   -17.0   -15.8   -22.3   -22.5   -13.0   -15.7    -9.4    -3.0
2011    -1.3    -5.1    -999   -13.1   -19.7    -999    -999    -999    -999    -999    -999    -999
2012    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
2013    -999    -999   -13.7   -17.4   -19.6   -16.2   -18.1   -21.0   -13.5   -12.8    -7.4    -3.1
2014    -0.8    -4.9   -12.1   -16.9   -12.9   -21.6   -20.7   -18.7   -14.0   -18.8    -5.4    -2.6
2015    -1.8    -4.1   -10.3   -17.7   -24.2   -17.3   -25.3   -21.0   -19.1   -15.1    -7.4    -2.4
2016    -2.5    -6.3   -12.5   -16.0   -17.6   -23.0   -21.8   -17.0   -24.4   -14.1    -5.0    -1.1
2017    -1.4    -4.5    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999
#       I       II       III    IV       V       VI     VII     VIII    IX      X        XI     XII