1980

0.0

2006

0.0

1939

7.8

1990

6.4

1975

2.4

2005

6.1

1967

5.2

1961

5.0

2018

7.2

1995

2.0

2004

4.6

1983

4.4

1999

6.9

2003

4.9

1996

6.4

2001

6.6

2002

5.3

2004

6.7

2002

4.8

1982

7.2