On Nov. 7, 2010 I spent some time making contacts in the 2010 ARRL CW Sweepstakes contest. I also kept a log of all the stations I heard. I heard 37 stations (and worked 20 of them) on the 40, 20, and 15 metre bands. All were in North America, except one, CX/N3BNA, in Uruguay. CX/N3BNA wasn't actually participating in the contest but he was on 15 metres at the time of the contest, so I worked him on the air.
All the other stations were in the continental U.S. or Canada, except for NP2X in the U.S. Virgin Islands. One Alaskan station was also heard, KL7AF, which is located at Elmendorf Air Force Base.
This shows one reason why SWLs should consider DXing the amateur bands. As far as I know, there are no shortwave broadcasters left in Uruguay or in the U.S. Virgin Islands. So if you want to hear those countries on the air, the amateur bands are really the only practical option.