Year	1 in: rate varies by country
2000	18
2001	19
2002	19
2003	20
2004	20
2005	20
2006	21
2007	21
2008	21
2009	21
2010	21
2011	22
2012	22
2013	22
2014	23
2015	23
2016	24
2017	24
2018	25
2019	26
2020	27