2006

5.7

2000

7.4

2015

5.8

1985

6.9

2002

9.0

2017

6.8

2006

5.2

2017

6.0

1982

4.8

1998

7.2

2001

6.1

2008

7.0

2007

6.9

2017

6.4

2007

6.9

2005

6.5

1977

7.2

2008

3.0

1939

7.1

1942

3.0