1991

0.0

2003

8.1

2019

4.5

2008

6.1

2007

6.6

2019

4.0

2013

7.1

1979

7.0

1975

7.2

1993

6.1

2009

5.7

1970

7.5

0.0

1991

7.1

1969

6.0

1996

7.5

2007

7.8

2005

5.1

1988

0.0

1963

3.7