11.   The conversion rate of coca leaf to powder cocaine depends on the efficiency of clandestine drug laboratories that use a variety of chemicals in the process.

12.   The popularity of powder cocaine and crack is declining, the report found.

13.   They also noted scientific studies had determined that crack was no more addictive than powder cocaine.

14.   Whipple denied a motion to sentence Aikens on the basis of powder cocaine, instead of crack.

15.   A criminal complaint alleged that Camacho had powder cocaine.