2009

5.8

1991

5.5

1989

7.1

2019

0.0

2016

5.0

2005

4.5

1959

7.9

1974

6.4

2006

6.0

1997

6.1

2000

6.4

2007

6.2

2007

5.4

2009

7.8

1956

7.0

2008

6.5

1999

6.0

1950

4.5

2009

6.2

2005

4.4