A budget is not one document but a sequence of them — from the medium-term forecast through the tabled bill and the adopted act to the year-end report. The international Open Budget Survey standard lists eight key documents; this page shows which of them are available here.
"N of 8" is a sentence about this site, not about Bulgaria. Several of the eight have no ingest here at all, and "we do not collect X" is not "Bulgaria does not publish X". The one exception the module allows itself is the citizens budget — because that is exactly what this module is.
The eight-document scorecard is site-wide. The list beneath it is for one fiscal year. The two differ deliberately: the monthly КФП report, for instance, carries no fiscal year, so it appears in the frame and in no year's list.
The link between a budget document and a recorded vote is not in the data — none of the documents carries a reference to a specific vote. Deriving it from the title would be a guess: a title carrying "second reading" in a procedural position is a first reading. An unbuilt section beats a fabricated one.
See also execution and the methodology.