2003

7.2

2001

4.8

1994

7.3

2002

6.6

1998

4.4

1982

7.6

2000

6.3

1976

7.3

2004

7.0

1975

7.3

1989

7.5

1978

6.7

2006

6.3

1978

6.8

1990

5.9

2004

5.8

2017

0.0

2022

5.6

2007

6.7

1968

1.0