2001

7.8

2000

6.4

1998

7.8

1965

6.3

2003

5.9

1987

6.8

1979

5.7

2025

6.0

1966

6.5

1974

6.6

1990

6.9

1976

6.8

1972

6.1

2006

7.6

2001

5.9

2025

8.5

1968

6.5

2007

5.2

1975

4.5

1964

7.4