2002

6.6

1927

7.8

1995

6.7

1971

7.2

1941

7.1

1947

6.9

1948

6.1

1954

5.5

1946

6.3

1959

6.1

2007

7.2

2009

7.6

2017

7.4

1985

5.6

1989

6.9

2015

6.8

1928

5.6

1975

6.3

1970

6.7

2000

6.1