1928

7.9

2010

6.6

2019

7.6

1962

7.9

1995

6.1

1970

8.2

2011

7.1

1920

7.9

1921

7.8

1987

6.2

1959

8.1

2015

6.1

1964

6.8

2019

8.5

1967

6.7

2008

7.0

1973

7.1

1959

7.7

2009

7.7

1990

6.1