2006

7.0

1955

7.3

1956

7.1

1979

2.0

1977

5.6

1992

4.7

1957

4.0

1990

6.7

1969

4.1

1989

0.0

2009

5.8

1990

0.0

2012

5.9

2012

4.0

1974

2.0

1977

5.0

1962

7.4

1973

2.5

2017

7.1

2019

6.9