2004

6.3

1976

3.3

2005

3.8

1999

6.6

2006

6.6

1999

1.0

2004

1.0

2008

4.0

1973

3.7

1973

5.8

1967

5.3

1999

7.1

1997

6.8

1975

3.8

2019

3.8

1975

5.8

1997

6.6

2007

6.9

1992

7.4

2001

3.9