2012

9.3

2007

5.2

2009

7.1

2007

10.0

1994

7.9

2013

6.4

2021

7.8

2007

6.2

2015

7.2

2011

6.1

1981

6.6

1985

5.3

2016

6.4

1964

7.0

2005

5.7

1979

7.3

1973

6.9

2017

6.0

2011

6.7

1996

6.2