Apologies I missed copying the actual reference in my last post: https://www.ers.usda.gov/webdocs/publications/40408/30646_wrs0404f_002.pdf?v=41465 https://www.

Apologies I missed copying the actual reference in my last post: https://www.ers.usda.gov/webdocs/publications/40408/30646_wrs0404f_002.pdf?v=41465 https://www.ers.usda.gov/webdocs/publications/40408/30646_wr...