1990

7.2

2007

4.3

2009

5.3

2024

6.6

1973

7.5

1994

5.5

2024

7.2

1970

0.0

1977

8.3

1987

5.0

1995

3.9

1997

5.0

1997

3.1

2004

4.8

1988

6.3

1980

6.7

1975

7.2

1979

7.0

2004

4.7

2006

5.5

2014

8.5

1981

6.5

1987

7.2

2010

5.5

1990

6.2

2015

5.0

1977

7.0

1974

7.5

1982

8.0

1989

5.0

2025

0.0

2014

6.3