2003

7.4

1964

7.4

2001

5.1

2008

3.9

1994

5.3

1985

5.4

1932

4.5

1934

6.1

1976

5.9

1988

6.3

1981

6.4

1999

5.9

2017

6.6

1986

7.0

1963

7.2

2005

5.5

2017

4.8

1990

6.9

1942

6.0

1972

7.5