2017

7.4

2004

8.3

2017

7.2

2008

8.9

1992

5.8

2017

6.1

1987

8.4

1998

6.8

1964

7.4

1999

7.9

1993

6.6

2004

9.1

1973

6.8

2013

8.6

2008

6.0

2010

8.1

1995

7.8

2010

8.5

1966

7.6

2016

8.0