2010

6.6

1955

7.2

2013

6.2

2020

7.0

1991

7.5

2010

7.7

1956

7.5

1990

6.1

1999

7.4

2024

6.9

2001

8.9

1987

6.5

1996

6.6

1974

7.0

1975

6.8

2001

5.3

1964

7.3

1997

7.4

2008

6.3

1988

5.7