1896

7.1

1999

5.7

1985

7.5

2006

7.2

2003

6.2

2006

5.8

1984

6.4

2000

6.3

2003

5.8

2007

6.8

2010

5.5

1888

6.3

1894

5.2

1893

5.6

2004

6.5

1991

6.2

2002

7.6

2008

5.5

2002

7.0

1999

6.3