Year	Forecast	Observed
1984	10	13
1985	11	11
1986	8	6
1987	8	7
1988	11	12
1989	7	11
1990	11	14
1991	8	8
1992	8	7
1993	11	8
1994	9	7
1995	12	19
1996	10	13
1997	11	8
1998	10	14
1999	14	12
2000	12	15
2001	12	15
2002	11	12
2003	14	16
2004	14	15
2005	15	28
2006	17	10
2007	17	15
2008	15	16
2009	11	9
2010	18	19
2011	16	19
2012	14	19
2013	18	14
2014	10	8
2015	8	11