2016

8.0

1983

7.8

2004

7.2

1986

6.0

1976

8.0

1999

7.1

2006

6.6

2004

5.8

1992

7.2

5.0

1970

6.8

2015

6.4

1965

8.3

1988

7.4

1991

7.5

2004

5.9

1994

8.1

1965

7.4

2009

6.0

2020

6.0