nnstats will extract the collection (C) and expiration (X) entries from the
log file and calculate total and average number of articles, groups
and elapsed time per day, per month, or for the duration of the whole
Normally only a summary for the specified period is printed. If
-l is specified, the statistics for each day in the period is
also printed, and if -t is specified the summary is not
Normally the statistics is collected for all days in the log files (or
the current log file if one is not specified).
If "-m month" is specified, the statistics for that month
is calculated. The month is specified in normal date
notation, i.e. a capitalized three letter abbreviation like Jan, Feb, ...
If "-d month day" is specified, the statistics for
that date only is calculated and printed.