2005

6.2

1982

7.1

2009

5.9

2017

5.0

1969

0.0

1980

7.0

1990

7.3

2005

6.5

1962

8.4

1975

5.1

1970

0.0

1996

6.6

1986

6.1

2004

5.9

2018

4.9

1979

5.7

1995

6.1

2000

6.1

1998

6.6

1951

4.6