2003

6.0

1987

6.8

2000

4.2

1990

5.1

1963

6.7

1965

6.3

1960

6.9

1975

6.6

2006

5.1

1988

6.2

2014

4.5

1990

7.4

1991

6.5

1984

5.6

1934

6.0

2005

6.4

2008

3.9

1983

6.4

1999

5.4

1985

5.4