1968

7.6

2012

4.4

2003

7.8

2019

6.9

2009

7.5

1975

5.5

1989

5.0

1996

2.0

2013

6.7

1999

4.2

1999

5.5

2007

5.9

1969

4.5

1984

1.0

1977

5.6

1968

3.5

2009

6.5

1972

5.7

1969

0.0

1965

3.6