pldb streak
Duolingo, but the lesson is getting into POPL. Your longest run of consecutive editions at one venue, the year it broke, and your longest drought.
Try Robbert Krebbers, Alex Aiken or Thomas W. Reps.
Within PLDB: a venue streak is consecutive editions of that venue (years it has papers here), so off years of a biennial venue break nothing. Any-venue streaks are calendar years with at least one PLDB paper. dblp lags a little for the newest ASE and ICSE.