2006

4.6

2001

1.0

2003

5.0

1980

4.8

2002

5.1

2006

6.1

2005

4.9

2001

5.9

1978

6.1

2025

0.0

1979

6.2

2024

8.0

1991

4.6

2005

6.3

1975

3.1

1967

6.9

2000

3.2

1973

3.5

2023

0.0

2001

4.0