1935

4.5

1997

7.1

2005

6.5

2006

5.5

2007

6.8

1923

0.0

2004

7.3

2004

7.1

2006

7.6

2005

6.2

1964

6.8

1960

2.5

1963

7.0

2016

5.3

1987

4.5

1995

6.2

1970

6.8

2002

6.2

1992

5.4

1924

0.0