Your question does not provide enough clues to be able to provide an answer. Please use your creativity and produce a better question with some sample code that clarifies your question. You can start with this:
input idnumber account $ month $ init mmddyy8.;
format init date9.;
1 0101 jan 1/23/23
2 0306 feb 2/15/23
3 0405 mar 3/3/23
which do not correspond in any way to your input data, so we can't possibly help you produce such a table from this input data. Also we don't know what the numbers in the cells are. A better explanation is needed.
If you want zeros, you can add zeros for the missing months into your input data.
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