One more query, no gap in address history mean the end of one period match the start of the next period?
address 1: 4/2/12- 5/19/14
address 2: 5/19/14-7/11/16
or the start of the next period should be the day after the last day of the previous period?
address 1: 4/2/12- 5/19/14
address 2...