Year	Number
1990	7201813
1991	7397912
1992	8796847
1993	6765996
1994	6271137
1995	6336237
1996	6395082
1997	6266545
1998	6136107
1999	6243852
2000	5964812
2001	5865672
2002	5291043
2003	4776128
2004	4856487
2005	4569748
2006	4985059
2007	5452479
2008	5391265
2009	5499608
2010	5420158
2011	5270992
2012	5616178
2013	7407179
2014	9147618
2015	10068476
2016	10258193
2017	10798271
2018	10965365
2019	10803638
2020	10815620
2021	10855694
2022	15737062
2023	16011014