1950

7.2

1949

5.0

1970

0.0

1999

6.5

1989

6.3

1969

0.0

1956

6.1

1998

5.5

2003

5.6

1991

0.0

2019

6.9

2014

6.0

1986

7.0

1969

7.0

1930

6.9

2008

5.1

1931

0.0

1978

6.6

1968

0.0

2008

7.2