Date  Time cid  charge  balance
2012-01-01 01:02:03  101  0.00  1000.00
2012-12-31 23:53:12  101  0.50  999.5
2012-12-31 23:53:32  101  0.50  999
2012-12-31 23:54:35  101  0.50  998.5