1970

5.6

2007

6.4

2008

7.5

2006

5.0

2013

0.0

2018

6.1

1967

4.8

1980

7.8

1985

6.3

2002

6.1

1999

4.6

1985

7.0

1958

7.3

1987

6.9

2023

6.2

2010

3.9

2017

4.9

2005

2.3

1979

0.0

1995

6.1