1969

5.4

1995

5.8

2019

6.7

1993

7.3

2013

6.0

2011

5.5

2017

7.5

2018

0.0

1972

6.5

2013

9.0

1973

7.0

2017

7.0

1978

6.2

2017

7.8

1967

6.5

2014

6.7

1984

7.2

1984

6.2

2011

6.0

1975

6.0