1950

7.2

1949

5.0

1970

0.0

1999

6.5

1989

6.3

1956

6.1

1998

7.0

2003

5.6

2014

6.0

1972

7.4

1969

7.0

1955

6.6

2008

5.1

1978

6.6

1919

0.0

1936

7.1

2006

6.4

1990

9.2

2025

8.0

1958

6.3