Susan Boyle’s “I Dreamed a Dream” (Syco Music/Columbia) is No. 1 on the Billboard album chart for a fifth week, racking up another 510,000 sales, according to Nielsen SoundScan. She is the first artist in the 53-year history of the chart to have a debut album open No. 1 and stay in that position for the following four weeks. Ms. Boyle has sold a total of 2,982,000 albums, trailing Taylor Swift’s “Fearless” (Big Machine) by only 175,000 as the best-selling title of 2009, with one week of sales left for the year. (SoundScan’s year officially ends on Sunday.) On last week’s chart the continued success of “I Dreamed a Dream” pushed Alicia Keys’s latest album, “The Element of Freedom” (J), to No. 2, and on this week’s chart Ms. Boyle holds off another R&B diva: Mary J. Blige’s new release, “Stronger With Each Tear” (Geffen), opened at No. 2 with 330,000. Andrea Bocelli’s “My Christmas” (Sugar/Decca) is No. 3 with 284,000, “The Element of Freedom” is No. 4 with 280,000, and Ms. Swift’s “Fearless” is in fifth place with 224,000.