2017

7.1

2010

6.4

1977

5.9

2006

6.3

1954

8.4

2019

8.5

1994

8.7

1999

8.4

1957

8.5

1985

8.3

1976

8.1

1997

7.9

2019

7.7

1979

8.2

2004

7.5

1977

8.2

2012

7.2

2019

8.2

1990

7.4

2007

7.3