The following list shows both 'page' and 'image' hits for all status codes except 200 (Okay) and 304 (Not modified).
You can check the exact cause for error codes in the error logfiles on your webserver.
Status 206 (Partial Content) : 105 23 /logo.gif 22 /showroom/993.gif 7 /showroom/x5b.jpg 4 /3series.jpg 4 /preowned/500off.gif 4 /preowned/preowned.gif 4 /showroom/20003wag.jpg 4 /showroom/993sed.jpg 4 /showroom/99mcoupe.jpg 3 /showroom/997sed.jpg 3 /showroom/logo.gif 2 /preowned/logo.gif 2 /showroom/20003.jpg 2 /showroom/995sed.jpg 2 /showroom/995wag.jpg 1 / 1 /bg.gif 1 /inside1.gif 1 /preowned/2006p.jpg 1 /preowned/8213.jpg 1 /preowned/948p.jpg 1 /preowned/bar.gif 1 /preowned/p049.html 1 /preowned/p059.html 1 /preowned/y245a.html 1 /preowned/y418a.jpg 1 /showroom/20003con.jpg 1 /showroom/99z3.jpg 1 /showroom/index.html 1 /ultlogo.gif Status 301 (Moved) : 377 206 /preowned 167 /showroom 3 /service 1 /maps Status 400 (Bad request) : 4 2 /../ 1 bmw 1 bmwinfo Status 404 (Not Found Requests) : 187 133 /robots.txt 24 /favicon.ico 9 /dealserv/inside.html 5 /showroom/favicon.ico 2 /_vti_inf.html 1 /20003con.jpg 1 /20003wag.jpg 1 /PREOWNED/P053.HTML 1 /_vti_bin/shtml.exe/_vti_rpc 1 /accessor/favicon.ico 1 /dealserv/menu.html 1 /preowned&aff_id=771 1 /preowned/9289a.jpg 1 /preowned/9313a.jpg 1 /preowned/favicon.ico 1 /preowned/y325a.jpg 1 /show5.html 1 /show7.html 1 /showroom/orinfo.html