Year	Number
1971	18785880
1990	17598220
2000	14379339
2001	10596436
2002	11313770
2003	5825788
2009	226939
2010	161385
2011	218001
2012	991608
2016	1715638.25
2017	2947550.25
2018	3267403.5
2019	3885005
2020	2004694.25
2021	1130417.75
2023	907274.75