1997

6.6

2006

7.5

1973

6.9

2002

6.7

1972

5.2

2007

6.7

2008

7.0

1950

7.1

2024

0.0

2007

6.7

1969

7.8

1981

6.2

2020

1.6

2008

6.9

2008

6.7

2004

1.4

1994

6.7

2006

5.4

2024

6.1

1986

7.0