1931

4.0

1931

7.2

1932

7.4

2002

7.1

1948

7.9

1961

7.2

2005

6.8

1964

0.0

2006

6.9

2018

6.6

1923

5.7

1971

5.2

1984

6.7

1970

6.0

1968

6.9

1935

5.8

1937

6.0

1989

7.2

1996

6.8

1958

7.7