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