2007

6.9

2003

6.2

2004

5.6

2016

4.2

2000

5.8

2007

6.1

2015

3.0

1966

5.8

2009

7.5

1969

6.6

1995

6.5

1967

6.9

1992

4.9

2004

3.1

2004

3.8

1972

6.3

1963

7.5

1985

5.8

1991

5.3

1974

3.6