1992

6.5

1998

7.7

1980

7.3

2004

5.3

2010

5.6

1997

7.0

1993

8.0

1996

6.0

1986

8.3

2019

8.2

2013

0.0

2002

6.0

1991

5.0

1990

7.4

2003

7.3

1984

6.9

2020

0.0

1983

6.9

2018

8.5

2019

0.0