1978

7.7

2023

5.2

2025

5.5

1989

4.8

1999

5.0

1986

6.1

2014

6.9

1991

6.5

1982

6.5

2001

8.0

1981

0.0

1979

0.0

1993

6.1

1974

7.0

2004

7.3

1989

5.8

1984

5.2

1981

0.0

2006

6.2

2002

6.0

1997

7.0

2006

6.5

1986

7.0

1987

7.5

2002

0.0

1994

3.5