2007

6.9

2019

9.0

1988

7.8

2000

6.1

2017

6.0

1955

3.5

1963

6.6

2009

5.2

1950

7.9

1984

8.4

2009

6.3

2014

6.7

1948

6.4

1980

4.1

1980

6.6

2018

6.0

1995

6.3

1938

6.9

2013

0.0

1986

5.6