Year	1 in: rate varies by country
2000	20
2001	21
2002	22
2003	23
2004	23
2005	24
2006	24
2007	25
2008	25
2009	26
2010	26
2011	27
2012	28
2013	29
2014	29
2015	30
2016	31
2017	32
2018	33
2019	34
2020	36