1999

7.0

2007

7.3

2000

8.1

1993

5.5

1994

8.3

2021

5.6

1991

7.5

2006

5.5

2001

6.4

2000

6.9

1976

7.6

1984

6.8

2007

6.2

2003

7.0

1995

5.7

2004

7.2

2021

0.0

2014

6.8

2006

6.7

2009

5.9