1995

6.1

2000

6.0

2007

0.0

2017

0.0

2001

5.4

2005

4.0

1991

6.8

1983

3.8

1990

1.0

1986

7.5

1993

5.9

1986

0.0

2008

5.7

1997

7.4

1972

8.0

2001

0.0

2023

6.9

1997

6.7

2004

5.3

1977

4.5

1975

4.2

2000

6.5

2018

6.2

1998

6.2