2009

8.3

1969

7.1

2015

6.0

2014

4.9

1955

7.4

2017

7.2

2007

5.7

2016

7.8

1968

6.0

2006

6.5

2016

7.0

1960

6.1

1984

8.6

1961

5.6

2009

7.9

2009

8.1

2017

6.0

1975

8.7

1968

4.4

2000

6.1