For long i've been wondering how Trine Dyrholm's "Mr. Nice Guy" ( http://danishcharts.com/showitem.asp?interpret=Trine+Dyrholm&titel=Mr.+Nice+Guy&cat=s ) could have been 135 weeks (!) on the Danish Singles Chart, as I don't even remember the song being a even minor hit in Denmark. Thanks to the archive at Hitlisten.NU i can finally confirm that there's a major data error in the danishcharts.com archive of 2005, 2006 and 2007. The Hitlisten.NU archive goes back to 2007, so i've only been able to re-create that year. If you look at the tracks that have been #1 in 2007 on Wikipedia ( http://en.wikipedia.org/wiki/List_of_number-one_hits_in_Denmark#2007 ) you will see it doesn't match up with the danishcharts.com archive. For example according to danishcharts.com Trine Dyrholm's "Mr. Nice Guy" was a #1 hit in several weeks, but it isn't listed on Hitlisten.NU. Instead Rihanna's "Umbrella" was a #1 hit for 6 weeks according to Hitlisten.NU, but not according to danishcharts.com (highest peak #8!)
No they are combined singles and downloads. But the charts from January-October 2007 were published in November. They changed all the charts afterwards.