It's not clear where the numbers on that site come from, but the MintPress story has this actual source: https://oec.world/en/visualize/tree_map/hs92/export/us

It's not clear where the numbers on that site come from, but the MintPress story has this actual source: https://oec.world/en/visualize/tree_map/hs92/export/usa/all/show/2017/ https://oec.world/en/visualize/tree_map/hs92/export/usa/all/... > Human or Animal Blood; HS92 ID: 3002; Export Value: $28.6B; Export: RCA2.30; Percent: 2.3% For all of the HS data used throughout the site (1995 - 2017) we use the BACI International Trade Database2. The original data comes from the United Nations Statistical Division (COMTRADE), but is cleaned by the BACI team using their own methodology of harmonization. (https://oec.world/en/resources/data https://oec.world/en/resources/data)