Year	%
1987	1.2
1990	1.2
1992	1.4
1994	1.2
1996	1.3
1998	1.3
2000	1.3
2003	1.4
2006	1.8
2009	1.9
2011	2
2013	2.1
2015	2.2
2017	2.2
2020	1.7
2022	2.3