2005

5.3

1997

3.9

2008

6.8

0.0

1987

7.0

1966

6.1

2001

6.8

2003

5.0

2002

6.2

2006

5.6

1982

6.0

1989

0.0

1985

5.2

2023

8.0

1988

7.8

1982

4.5

1927

0.0

1991

5.2

1969

6.5

1967

6.9