1993

7.8

2002

5.6

2009

7.5

1995

4.1

1969

3.8

1988

7.1

2001

5.1

1968

2.7

2018

4.4

1969

0.0

2003

7.8

1968

7.6

2006

7.4

1975

5.5

1976

5.6

1960

6.1

2004

5.4

2004

1.6

1972

5.2

1964

3.9