Ukraine has exported almost 20 million tons of cargo – mostly products from Ukrainian farmers – across the Black Sea in the six months following the withdrawal of the Russian fleet, the prime minister wrote on Telegram on Tuesday. Denys Shmyhal said, “70% of this cargo is agricultural products from our farmers.” In total, more than 660 freighters headed toward 32 countries have sailed in this six-month period. In January, the monthly pre-war level of exports by sea was even reached. A good 60% of exports worth the equivalent of over €2.8 billion ($3 billion) in January were sent by sea. Ukrain…