Year	1 in: rate varies by country
2000	1200
2001	1300
2002	1700
2003	1900
2004	2100
2005	2200
2006	2500
2007	2800
2008	3300
2009	3100
2010	3700
2011	4200
2012	4000
2013	4400
2014	4700
2015	5000
2016	5100
2017	6500
2018	6500
2019	6600
2020	6300