1982

4.8

2003

6.1

2006

7.6

2008

5.0

1980

6.3

2005

6.2

1969

6.4

1972

6.5

2021

6.8

1999

5.6

2000

5.5

2001

6.7

2009

0.0

1986

6.7

2006

6.4

2008

6.8

2017

3.6

1978

3.0

1982

5.3

1980

6.5