"left(rev_timestamp, 6)",count(*)
201901,5
201902,5
201903,4
201904,3
201905,5
201906,19
201907,18
201908,281
201909,8
201910,9
201911,38
201912,117
202001,462
202002,117
202003,56
202004,139
202005,236
202006,46
202007,93
202008,53
202009,29