Slovenia Onion Production is set to reach 11.7 Thousand Metric Tons by 2026 from 11 Thousand Metric Tons, is expected to jump by 3.2% per year. Since 2017, the supply jumped by 0.7% year on year reaching 99,090 Thousand Metric Tons. India, the United States and Egypt respectively were numbers 2, 3 and 4 in this ranking.