1997

7.7

1991

7.6

2014

8.2

2006

6.8

1986

4.0

1963

10.0

1999

8.3

1999

8.2

1976

7.9

2024

0.0

1998

7.0

2013

7.0

1981

7.3

1996

5.9

1984

8.5

1964

6.2

1988

7.2

2015

6.5

1986

5.3

1972

5.0