 It covers all 15,282 singles from 5,882 artists thus far.The Flemish Ultratop 50 chart has existed since 31 March 1995.Prior to 1995, the official weekly chart was the Radio 2 Top 30 (previously known as the BRT Top 30) broadcast by the Belgische Radio- en Televisieomroep (BRT) and subsequently by the Belgische Radio- en Televisieomroep Nederlandstalige Uitzendingen (BRTN) - a chart which continues to be broadcast to this day by the BRTN's successor, the Vlaamse Radio- en Televisieomroeporganisatie (VRT) (hence its alternative name, the VRT Top 30).