1987

7.0

1986

6.0

1974

3.6

0.0

1990

6.0

2018

5.9

1999

4.3

1993

6.2

2002

4.0

1990

5.9

2005

4.9

1991

6.6

1989

5.2

1992

6.8

1992

6.4

1998

3.0

2004

5.6

2004

6.8

2005

6.2

1973

7.5