It looks like you've already got your answer but I just thought I'd throw in my 2 cents.

I have done this before for an undergraduate project. I was only maintaining dates, ips, and in & out pages. I think that worked well enough for me, and it certainly didn't take up much space. I even setup a page which would take all of the results from a date range and I could download them to a text file. You'd be surprised what statistical data you can get using only 4 rows in a table, but maybe you're looking for a lot more than that. Either way, keeping it simple is one of the best ways to not confuse yourself or get your tables and code out of order. Good luck!