2008

8.0

1982

5.4

1973

7.5

1969

7.6

2017

6.5

2001

7.9

2017

7.7

2015

7.4

1996

6.4

2002

6.9

1926

7.9

1973

8.0

2013

6.1

1962

7.7

2002

7.5

2016

7.9

2010

7.1

2012

7.6

2017

6.6