Year	Number
1996	59.5
1998	60.6965179443359
2000	63.6815910339355
2002	60.6965179443359
2003	57.7114410400391
2004	60.0961532592773
2005	61.0576934814453
2006	62.980770111084
2007	61.0576934814453
2008	62.019229888916
2009	60.1895751953125
2010	59.2417068481445
2011	58.6854476928711
2012	57.7464790344238
2013	57.7464790344238
2014	60.5911331176758
2015	63.5467987060547
2016	65.5172424316406
2017	67.4876861572266
2018	65.5339813232422
2019	64.2512054443359
2020	65.2173919677734
2021	64.2512054443359
2022	63.7681159973145