TTL WHERE
1970-10-10	2
1970-10-10	5
1970-10-10	8
2000-10-10	1
2000-10-10	2
2000-10-10	4
2000-10-10	5
2000-10-10	7
2000-10-10	8
TTL GROUP BY
1970-10-01	0	4950
2000-10-01	0	450
2000-10-01	1	460
2000-10-01	2	470
2000-10-01	3	480
2000-10-01	4	490
2000-10-01	5	500
2000-10-01	6	510
2000-10-01	7	520
2000-10-01	8	530
2000-10-01	9	540