Table: microphone_steps
Columns: single
ccm_chart
debut
peak_date
peak_pos
total_wks
spins_since_1998_source_mediabase

Question: How many Spins sources have a CCM Chart of CHR with a peak position less than 1?
SQL: SELECT COUNT("spins_since_1998_source_mediabase") FROM microphone_steps WHERE "ccm_chart" = 'chr' AND "peak_pos" < 1

Question: What CCM Chart had 18 total weeks?
SQL: SELECT "ccm_chart" FROM microphone_steps WHERE "total_wks" = 18