Year	1 in: rate varies by country
2000	1500
2001	1400
2002	1500
2003	1500
2004	2000
2005	2100
2006	2000
2007	2000
2008	2300
2009	2400
2010	2500
2011	2900
2012	3000
2013	3200
2014	3600
2015	3600
2016	3800
2017	3900
2018	3800
2019	3900
2020	3800