1990

10.0

1967

7.7

1983

6.0

1969

8.2

1987

7.5

1984

7.2

2019

6.9

1976

0.0

2011

8.1

2013

6.8

2002

8.1

2005

3.1

2007

0.0

2019

7.6

2009

8.0

1994

7.5

2007

6.6

1998

7.3

2010

8.2

2010

8.0