2006

7.4

2003

7.8

1968

7.6

2001

5.1

1988

7.1

1968

2.7

1976

5.6

1975

5.5

2018

4.4

1995

4.6

2009

7.5

2004

5.5

1972

5.2

2000

3.7

1969

6.4

2004

1.6

2004

3.7

1997

0.0

1964

3.9

1997

1.8