Jahr,Total,Schweizer/innen,Ausländer/innen
2005,2.7,1.8,6.6
2006,2.8,1.9,6.6
2007,2.5,1.7,6.0
2008,2.2,1.4,5.3
2009,2.2,1.5,5.5
2010,2.3,1.5,5.5
2011,2.3,1.5,5.6
2012,2.5,1.6,6.0
2013,2.6,1.7,6.2
2014,2.7,1.8,6.4
2015,2.8,1.8,6.8
2016,2.9,1.8,6.8
2017,3.0,1.9,7.0
2018,3.0,1.8,6.9
2019,3.0,1.8,7.2
2020,2.8,1.7,6.7
2021,2.8,1.6,6.5
2022,2.6,1.5,6.2