1996

8.0

2001

4.4

2008

6.0

1973

6.1

1997

4.5

2004

5.5

1971

5.4

2018

6.0

1970

5.5

1990

9.0

1975

5.8

2018

5.6

1976

4.7

2009

6.1

2019

7.8

1987

6.3

2008

2.0

2008

1.5

1977

7.3

1995

7.6