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<p class=MsoNormal><font size=3 color=black face=Optima><span style='font-size:
12.0pt;font-family:Optima;color:black'>It would be very interesting to see how
this compares to the same period around the beginning of the 20<sup>th</sup> century.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face=Optima><span style='font-size:
12.0pt;font-family:Optima;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face=Optima><span style='font-size:
12.0pt;font-family:Optima;color:black'>R<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face=Optima><span style='font-size:
12.0pt;font-family:Optima;color:black'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <st1:PersonName
w:st="on">bellhistorians@yahoogroups.com</st1:PersonName> [mailto:<st1:PersonName
w:st="on">bellhistorians@yahoogroups.com</st1:PersonName>] <b><span
style='font-weight:bold'>On Behalf Of </span></b>John<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, 16 October 2009
11:08 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">bellhistorians@yahoogroups.com</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [<st1:City w:st="on">Bell</st1:City>
Historians] Re: Levels of <st1:City w:st="on"><st1:place w:st="on">Bell</st1:place></st1:City>
Production</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p style='margin-bottom:12.0pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><br>
<br>
--- In <a href="mailto:bellhistorians%40yahoogroups.com">bellhistorians@<wbr>yahoogroups.<wbr>com</a>,
"Andrew Cairns" <andrew.cairns@<wbr>...> wrote:<br>
><br>
> I was interested to read <st1:PersonName w:st="on">Mark Regan</st1:PersonName>'s
letter (and associated graph) in todays RW. This may have been discussed before
but has anyone done a similar analysis in other counties or nationally? It
would also be interesting to know who Mark compiled his numbers; the obvious
starting point in the NBR<br>
<br>
Here is the data from the pNBR for the years back to 1970:<br>
<br>
pNBR bells<br>
============<wbr>=<br>
Year in pNBR<br>
------------<wbr>-<br>
1970: 101<br>
1971: 120<br>
1972: 82<br>
1973: 110<br>
1974: 84<br>
1975: 76<br>
1976: 60<br>
1977: 125<br>
1978: 120<br>
1979: 107<br>
1980: 101<br>
1981: 102<br>
1982: 78<br>
1983: 85<br>
1984: 81<br>
1985: 71<br>
1986: 56<br>
1987: 110<br>
1988: 100<br>
1989: 97<br>
1990: 81<br>
1991: 108<br>
1992: 105<br>
1993: 84<br>
1994: 68<br>
1995: 124<br>
1996: 116<br>
1997: 89<br>
1998: 223<br>
1999: 145<br>
2000: 167<br>
2001: 115<br>
2002: 72<br>
2003: 113<br>
2004: 110<br>
2005: 112<br>
2006: 109<br>
2007: 85<br>
2008: 100<br>
2009: 54<br>
============<wbr>=<br>
Total: 4046<o:p></o:p></span></font></p>
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