1977

0.0

1984

7.6

1989

8.1

2001

5.0

1983

7.8

1994

6.1

1987

4.8

1997

7.5

1995

6.8

2003

5.0

1986

6.0

2019

6.8

2010

6.5

2004

7.1

2005

7.5

1990

6.9

1985

4.1

2013

8.1

2021

7.7

1992

7.0

1985

5.6

1998

6.2

1986

7.3

1997

7.5

2009

1.5

2008

5.9

2021

5.4

1982

0.0

2014

8.2

1986

5.0

1993

5.9

1994

8.4

1980

0.0

1986

0.0

1977

7.6

1982

7.8

1989

6.0

2023

6.2

1978

0.0

2018

8.3

2017

7.9

1979

6.7

2019

6.7

2006

6.4

1999

5.7

1987

6.2

1975

7.7

1999

5.5

2019

6.5

1997

6.6

1988

6.2

1994

6.0