1981

5.2

1996

6.5

2000

0.0

1980

6.2

2017

6.3

1997

0.0

1997

5.4

2003

6.7

2010

5.3

2001

4.5

1998

7.3

1984

6.9

1997

4.5

1998

5.2

1984

0.0

1998

6.8

2015

5.3

2000

0.0

2002

6.5

2001

0.0

2013

7.5

2001

0.0

1988

5.0

1991

0.0

2000

6.9

1997

0.0

2012

1.0

1999

7.8

2006

5.6

2007

6.0

1993

8.2

2003

6.3

2007

5.7

1994

7.0

2021

4.8

2004

6.0

2010

0.0

2012

0.0

2012

6.2

1997

6.3

2020

6.1

2023

5.2

1989

6.0

1971

6.4

2014

5.3

1992

5.2

2000

0.0

1970

6.1

1994

0.0

1999

5.5

1978

5.5

2024

0.0

1996

1.0

2014

6.8

2005

0.0

1990

2.0

1999

5.6

2014

5.7

2000

5.5

2002

6.5

2017

7.5

2003

0.0

1994

5.5