2011

9.8

2012

8.9

2004

6.3

2018

6.7

2013

5.7

1975

7.4

2016

7.0

2025

10.0

2013

6.8

1971

4.5

1974

4.7

1979

6.9

1966

7.2

1973

7.0

1992

7.5

2000

7.5

1959

8.0

2000

7.6

1987

7.3

1999

8.0