A method and a system include, for each predetermined time period in a plurality of predetermined time periods, writing a plurality of data rows comprising a set of data associated with a plurality of active entities, and updating an index table based on the plurality of data rows in the stats table, wherein the index table comprises an index row. The method further includes receiving from an electronic device via an interface a query corresponding to an entity, retrieving an index value from an index row included an index row, retrieving the current value from the stats table using the index value, generating a response to the query using the index value and the current value, and displaying the response on a display of the electronic device.