1999

7.5

1994

6.7

2005

7.2

1999

6.9

1998

6.3

1996

6.1

2008

7.6

1997

6.6

1991

7.3

2006

7.5

2017

6.5

2022

6.6

1997

6.1

1972

8.7

1981

3.0

1997

7.0

2004

7.9

1977

7.1

2017

0.0

2023

0.0