2000

6.3

1998

6.4

1999

7.9

1982

5.8

2008

6.2

1981

7.9

2004

7.8

1980

8.4

2007

6.7

2001

6.9

1994

8.7

1999

8.4

2025

7.4

2005

6.6

2007

7.5

1969

7.9

1962

7.9

2017

6.0

1996

6.9

2007

6.5