1972

6.7

2001

5.9

2003

5.7

1988

7.3

1977

6.8

1972

6.3

1998

6.3

1988

6.3

1997

6.6

2004

5.3

1974

7.1

1995

6.5

2023

7.0

1996

6.7

1967

0.0

2022

7.3

2005

6.8

2009

6.2

2005

4.3

2006

6.5