Year	1 in: rate varies by country
2000	13
2001	15
2002	15
2003	15
2004	15
2005	16
2006	17
2007	16
2008	16
2009	16
2010	16
2011	17
2012	18
2013	18
2014	18
2015	18
2016	19
2017	17
2018	18
2019	18
2020	19