1969

5.3

1978

0.0

2000

6.2

2005

7.5

1976

6.7

2005

5.6

2006

5.7

1975

0.0

1965

0.0

2003

6.4

2003

6.9

2007

0.0

1994

5.5

1970

7.7

1973

6.0

1974

5.4

2013

6.1

2011

5.6