2007

8.2

2012

9.7

1990

6.1

1988

7.6

1958

8.0

1925

7.3

2017

6.3

2010

7.2

2013

6.4

1967

6.1

2006

6.6

2003

5.2

2006

6.7

1999

5.0

2018

5.7

2022

6.4

2019

7.0

1976

6.5

2015

6.2