Year	Number
1995	23.06618
1996	22.20588
1998	15.63636
1999	21.70652
2000	16.54
2001	21.58824
2002	21.59608
2004	10.75058
2009	16.04677
2010	19.17038
2014	20.24839
2015	19.46263
2016	14.09229