Total Registered PM Users               33512 
Logins In The Last 30 Days              2660 
Users Never Logged In                   6337 
Logged In Once, No Write Ups            19998 
Users With Write Ups                    7177 

##</code><code>##

[PerlMonks example]
Percentage of dead users:                     81%
Percentage of users logged in within 30 days: 7.9%
Percentage of active/contributed users:       21.4%