2006

5.8

2012

9.3

2009

7.4

1958

5.5

2011

5.6

1981

6.5

2001

6.7

2001

6.1

2012

6.3

2006

6.7

1972

7.7

1973

6.3

2009

6.1

1983

4.5

1993

7.6

1993

7.3

1991

5.0

1996

8.0

2017

5.5

2001

6.8