I have run 2 different sorts of spyware / adaware programs all on PC's and they both so nothing.
Stats show I have up loaded 6 Gigs since March 8th.
I understand. My comment is only to say that the 1:1 upload-download ratio seems higher than I might have expected for someone not hosting a server or using VOIP or peer-to-peer protocols. Like you I don't host servers or run other applications that use a lot of upload bandwidth and for comparison, my upload-download ratio is something like 1:10. The fact that 2 different adware programs come up with nothing only means that your PCs don't have any of the spyware that they know about. There's nothing stopping it from being something else they don't know about or a legitimate program that is doing something that you didn't expect...
Are you able to check whether the usage is uniform (ie. whether usage is pretty much the same from day to day in both amount and upload-download ratio) via your ISP?