1983

4.0

2002

7.1

2005

6.3

2007

6.1

2006

7.8

1987

6.2

1996

8.0

1995

7.6

1928

0.0

1970

5.5

2014

6.9

2018

5.6

2023

10.0

2005

7.5

2001

4.3

1999

5.0

1975

5.8

2016

7.0

2018

6.0

1936

7.1