1996

6.6

2003

5.6

1953

7.2

2003

5.7

2019

7.9

1993

6.5

2004

1.5

1984

6.1

1967

6.5

1959

6.9

1940

7.1

1985

6.4

1963

7.2

1996

6.8

2002

6.0

1968

7.0

2006

5.6

1997

4.5

1994

4.7

1978

7.3