2003

6.1

2001

8.4

1993

7.6

2001

7.8

2004

7.1

1997

5.7

1999

8.5

2006

7.0

1999

7.7

2014

6.0

2003

7.8

2007

6.9

1988

7.2

1995

6.2

1990

7.7

2007

7.0

1993

6.9

2023

7.3

1972

6.4

1973

7.0