innfeed question

[John Newman]

I'm probably missing something obvious here.... when I get log entries
like this:

Jan 19 16:25:10 news-feeds innfeed[4272]: [ID 255725 news.notice] news.jump.net 
checkpoint seconds 300 offered 7474 accepted 3959 refused 688 rejected 431 missi
ng 255 accsize 654532817 rejsize 4778393 spooled 624 on_close 0 unspooled 6054 d
eferred 0/0.0 requeued 0 queue 97.0/200:10,35,7,6,34,8

Jan 19 16:30:10 news-feeds innfeed[4272]: [ID 255725 news.notice] news.jump.net 
checkpoint seconds 600 offered 15989 accepted 9418 refused 1493 rejected 1252 mi
ssing 326 accsize 1284781261 rejsize 12801309 spooled 816 on_close 0 unspooled 8
400 deferred 0/0.0 requeued 0 queue 51.8/200:21,50,3,3,21,3

Why does the sum of accepted, refused, rejected, missing, deferred, requeued 
and spooled not add up to offered?  It always seems to come up short by a 
couple thousand articles...

--
John