1988

7.5

1972

8.7

1974

8.6

1990

7.4

1997

8.4

2006

5.4

2006

6.5

2007

5.6

0.0

1996

6.7

2006

6.3

2002

6.8

2025

6.4

1999

6.3

2007

7.2

2008

5.9

2006

6.5

2021

7.1

1998

6.3

2002

6.5