2012

9.4

1999

8.0

2013

6.3

1972

6.4

2015

5.3

1998

5.5

2000

6.7

1956

7.9

2012

9.8

2011

5.2

2006

6.5

2012

9.7

2003

4.9

1963

7.5

2012

7.3

2000

10.0

1990

7.4

2004

6.7

1959

8.1

2010

7.0