Costa Rica Imports from Germany of Silk Yarn and Yarn Spun from Silk Waste; Silk Worm Gut was US$49 during 2017, according to the United Nations COMTRADE database on international trade. Costa Rica Imports from Germany of Silk Yarn and Yarn Spun from Silk Waste; Silk Worm Gut - data, historical chart and statistics - was last updated on May of 2024.