2015

6.0

1972

7.9

1974

6.9

1996

6.1

2016

7.2

1963

7.5

2006

5.6

2006

5.8

1979

7.1

2017

7.2

2013

6.8

1970

6.5

2008

6.6

1994

8.0

1978

7.6

1991

5.9

2020

7.8

1968

7.5

1986

6.4

1988

6.4