Regional totals	Periodo	Total
National Total	2022	1,7
National Total	2021	1,83
National Total	2020	1,63
National Total	2019	1,95
National Total	2018	2,04
National Total	2017	2,11
National Total	2016	2,09
National Total	2015	2,08
National Total	2014	2,17
National Total	2013	2,05
National Total	2012	2,23
National Total	2011	2,22
National Total	2010	2,21
National Total	2009	2,12
National Total	2008	2,39
National Total	2007	2,78
National Total	2006	2,86
National Total	2005	1,67