1977

4.6

1952

5.9

2015

0.0

2014

6.5

1986

4.7

2014

2.0

1984

0.0

1979

6.5

2017

1.0

1975

6.7

1992

6.1

1973

4.6

1968

6.3

1972

6.3

1973

6.6

2008

4.0

1969

5.2

1966

6.2

2010

6.0

2008

4.9