bad figures caught: 19/22
good figures falsely flagged: 1/37
answers with a bad figure -> REVIEW: 18/21
clean answers -> PASS: 17/19
   b11 false flag 3.6%
   b11 clean answer sent to REVIEW ['3.6%']
   b13 missed bad $23,400
   b26 clean answer sent to REVIEW ['$16,800']
   b28 missed bad $10,000
   b37 missed bad $1,000
