Year	Number
1996	87.5
1998	87.5621871948242
2000	83.0845794677734
2002	85.0746231079102
2003	85.572135925293
2004	84.6153869628906
2005	83.1730804443359
2006	85.0961532592773
2007	83.1730804443359
2008	80.7692337036133
2009	81.9905242919922
2010	81.5165863037109
2011	81.6901397705078
2012	78.4037551879883
2013	79.8122100830078
2014	75.3694610595703
2015	78.3251266479492
2016	80.2955627441406
2017	81.2807846069336
2018	78.6407775878906
2019	78.7439651489258
2020	77.2946853637695
2021	76.328498840332
2022	77.7777786254883