1999

8.4

1972

7.1

1988

7.8

1997

7.1

2002

6.7

2001

7.4

1975

7.7

1978

6.0

1987

4.1

2006

6.7

1994

7.4

1977

7.1

2005

6.5

1982

7.9

1931

7.2

2024

3.7

1999

6.8

1997

7.8

1960

7.3

2017

5.2