While Bob Dylan scores his fifth no. 1 on the Billboard 200, others are descending down the rankings, starting with Rick Ross.

After landing at no. 1 last week, Rick Ross' latest album Deeper Than Rap dove to no. 4 this week, selling 51,000 copies, a 67% decline from last week's numbers.

Outside the top 10, we have a new album from Mike Jones. The Houston rapper returns after a four year hiatus with The Voice, taking a seat in the no. 12 spot with nearly 25,000 copies sold in its first week.

Two spots later, at no. 14, is Asher Roth's Asleep In The Bread Aisle. The debut album from "I Love College" rapper sold over 23,000 copies in his third week, putting his total at 88,000.

At no. 16 is Keri Hilson's In A Perfect World... with 23,000 copies; Jamie Foxx's Intuition sells another 22,000 copies to put him at 885,000 after 20 weeks; Beyonce's I Am ... Sasha Fierce jumped up a spot to no. 19 with 20,600; and Jadakiss' Last Kiss rounds out the top 20 with just over 20,000.

Debuts outside the top 20 include Midwest rapper Tech N9ne's new collabos project Sickology 101, which opens at no. 23 selling almost 19,000 copies.

However, according to a report from HipHopDX, SoundScan made an error. Tech's label Strange Music released numbers claiming they actually sold 21,455, which should put them within the top tier.

According to Billboard.com, overall album sales in this past chart week (ending May 3) totaled 6.172 million units, down 0.6% compared to the sum last week (6.176 million) and down 18.3% compared to the same sales week of 2008 (7.557 million).

Year to date album sales stand at 124.0 million, down 12.5% compared to the same total at this point last year (141.8 million).