1955

2.4

2007

6.0

2005

4.5

1956

1.7

2001

7.4

2005

5.2

1966

5.2

1950

2.4

2017

4.4

2003

6.2

1957

6.0

2001

7.7

1952

3.2

2010

6.1

1983

6.5

1969

2.1

2009

7.6

2017

8.4

1946

5.5

1969

2.9