1987

7.3

1999

7.3

2004

6.3

1997

0.0

1998

6.0

1989

6.1

1983

7.6

1971

7.2

2002

6.0

2017

6.2

2006

5.3

2004

5.5

1963

7.0

2017

6.7

1985

7.4

2017

6.0

1985

4.1

2019

5.8

1988

6.6

1993

3.5