2004

5.6

1984

3.0

1986

4.9

1956

7.2

1978

5.8

2017

6.7

1974

7.1

1991

7.9

1992

6.6

2004

6.6

1971

7.1

1994

6.8

1985

7.2

2018

6.3

1979

7.0

2004

6.7

2006

5.8

2007

0.0

2008

1.0

2008

5.9