2022-23 availability fell to 72.7 MAF, 29.8% below average.
Source
Pakistan Economic Survey — https://finance.gov.pk/survey/chapter_26/Complete_PES2025_26.pdf. Verified in source set / retroactive normalization pending.
What it proves
Water availability varies sharply, showing hydrological volatility.
What it does not prove: 2022-23 was the year of catastrophic flooding, yet canal availability was the lowest in the series — the figure measures water Pakistan could capture and divert, not rainfall or river flow, so it indicts storage and timing rather than a shortage of precipitation. A 29.8% swing below average also means the annual average is a weak planning number for a system this volatile.
Memory hook: 72.7 MAF in the flood year → too much water, too little of it captured
Rebuts the claim: "The 2022 floods showed Pakistan has surplus water, only bad drainage" — the same year recorded availability nearly 30% below average system usage.