This was reported by Ukraine's Security Service on Telegram.
As stated in the message, only every 20th missile fired by the Russian Federation over Ukraine hit a military object, the remaining 19 hit residential buildings, schools, and hospitals.
"During the six months of full-scale war, the world saw the brutal face of the Kremlin - thousands of dead Ukrainians, destroyed homes, and children who lost their parents. Only every 20th Russian missile strike hit a military facility, the remaining 19 hit residential buildings, schools, hospitals, and universities... In what Ukrainians built and created with their own hands, and what our peaceful life consisted of", Ukraine's Security Service wrote.