[WikiEN-l] Registered users stats

[shantanu oak]

Hi,
I am studying the wikipedia phenomenon in detail.
I need some more information about wikipedia growth.

Number of registered users at the end of every year:
At the end of 2001 :
At the end of 2002 : 
At the end of 2003 : 
At the end of 2004 : 165,000
I got the last (approx) figure from the page...
http://en.wikipedia.org/wiki/Special:Statistics

Please let me know the statistics for the other 3 years.

Thanks,
Shantanu Oak