2011

8.0

7.9

1965

7.4

2005

6.9

1932

6.3

2012

5.8

2021

9.2

6.8

2015

6.0

1929

6.2

2006

6.8

1986

5.7

1991

6.3

1965

8.0

2017

7.3

2016

7.2

2015

7.3

2013

4.0

1989

6.7