Year	1 in: rate varies by country
2000	1600
2001	2100
2002	2200
2003	2200
2004	2300
2005	2400
2006	2400
2007	2500
2008	2500
2009	2600
2010	2700
2011	2800
2012	2800
2013	2900
2014	2900
2015	2900
2016	2800
2017	3500
2018	3200
2019	2900
2020	3900