Table:
text: Step Up to the Microphone
Radio singles
Radio singles
Single CCM_Chart Debut Peak_Date Peak_Pos Total_Wks Spins_since_1998_source_Mediabase
Entertaining Angels CHR 4/20/98 6/8/98 1 14 9887
Entertaining Angels AC 5/25/98 6/29/98 32 8 9887
Believe AC 7/6/98 9/21/98 4 17 3114
Believe CHR 12/14/98 3/1/99 1 13 3114
Hallelujah Rock 7/13/98 9/28/98 4 18 144
WooHoo CHR 7/27/98 9/21/98 1 16 615
WooHoo Rock 1/11/99 3/15/99 20 8 615
Step Up to the Microphone CHR 5/3/99 6/14/99 1 16 503

Question: How many spin sources among CHR's microphone CCM chart step-ups with a peak position less than 1?

Question: Which CCM chart had a total of 18 weeks under Step Up to the Microphone?