Cumulative data

Hi devs,
we’re working on integrating EPI reporting requirements into DHIS. We’re facing one major and one minor obstacle related to periods in the analysis tools. The major obstacle is that most of the reporting that the EPI programme does during/within the year is based on cumulative data - cumulative doses given, cumulative coverage, cumulative drop out rates etc throughout the year. This cannot be done currently in PT/DV/GIS, and it will require quite a lot of work to build custom reports for all of this. The minor obstacle is the use of calendar year for reporting, i.e. for the relative periods we would like "months so far this year" or "months this year" etc.

Is support for this something that could be considered?