2016

6.5

1991

7.7

2004

6.8

1999

7.3

2008

5.7

2004

6.1

2000

5.9

2001

4.4

1990

7.0

2006

5.8

1965

7.9

2016

8.0

2007

7.6

2008

6.3

1947

7.5

1995

7.9

2005

6.4

2014

7.4

1994

4.5

1984

7.2