Year	Number
1996	4874.45
1997	5436.3099999999995
1998	5863.37
1999	6313.5199999999995
2000	7380.359999999999
2001	8329.3
2002	9436.06
2003	11317.479999999998
2004	13376.820000000002
2005	15875.729999999998
2006	20111.37
2007	24305.399999999998
2008	29990.13
2009	35940.270000000004
2010	41656.579999999994
2011	49672.83999999999
2012	52293.98999999998
2013	54458.12999999999
2014	58686.3
2015	62015.21
2016	71165.75
2017	77273.78
2018	84679.37999999999
2019	97217.86000000002
2020	110139.27000000002