lies about the Iron Dome, yet again: the Washington Post fabricates

I noticed this sentence in a long article in the Washington Post:  "During the war, Palestinian militant factions in Gaza fired almost 1,500 rockets at Israel, although 143 landed inside Gaza and 421 were reported intercepted by Iron Dome, according to the United Nations."  According to the United Nations?  The United Nations does not count how many missiles were "intercepted" by the Iron Dome.  Those are pure Israeli military fabrications.  The Israeli military propagandist cited the UN to bolster his lies, and the Washington Post dutifully wrote it down.