1979

7.0

2012

6.5

1994

7.8

1970

1.0

2011

6.0

2017

4.9

2005

7.9

2025

0.0

1955

0.0

2014

7.3

2012

7.1

1974

0.0

2005

8.6

1958

1.0

1999

8.3

1963

5.9

2009

1.0