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<DIV><SPAN class=640581419-17102009><FONT color=#0000ff size=2 
face=Arial> Looking at the two graphs they both seem to show consistency in 
number and weight from 1600-2000 (if you take the period 1850-1950 out as 
abnormally high).</FONT></SPAN></DIV>
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<DIV><SPAN class=640581419-17102009><FONT color=#0000ff size=2 
face=Arial>Andrew</FONT> </SPAN></DIV>
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