1995

6.5

1998

6.8

2006

6.0

2001

6.1

1999

6.1

2007

5.3

1980

6.7

1976

5.1

2005

6.9

1985

5.3

1975

5.8

2023

0.0

0.0

2023

0.0

1999

8.0

1997

6.8

1998

6.5

1964

7.1

1953

4.5

2023

0.0