1999

6.8

1984

6.2

1993

5.5

1985

7.8

1999

5.2

1991

7.1

1994

7.4

1995

4.4

2007

6.4

2003

7.2

2006

6.3

1999

7.1

1996

7.0

2001

6.9

1972

4.0

1985

7.2

2023

0.0

2010

5.1

1977

4.7

1982

4.0