Year	Number
1998	2916547.75
1999	2971926.25
2000	2987321.5
2001	3003724.5
2002	2988485
2003	2950943.75
2004	2842307.5
2005	2750070.75
2006	2745153.25
2007	2730401.5
2008	2654836.5
2009	2619255.5
2010	2576879.5
2011	2555075.25
2012	2556106
2013	2589373.75
2014	2609438.5
2015	2649281.5
2016	2733693.5
2017	2785690.75
2018	2810309.25
2019	2873634.5
2020	2601371.5
2021	3047397.25
2022	3111602.25