According to the archive [1] this is a similar format to the (printed? faxed?) reports as far back as 1964. The annual version [2] goes back to 1941 and uses a

According to the archive [1] this is a similar format to the (printed? faxed?) reports as far back as 1964. The annual version [2] goes back to 1941 and uses a similar format. Talk about backwards compatibility! [1]: https://usda.library.cornell.edu/concern/publications/tm70mv177?locale=en&page=71#release-items https://usda.library.cornell.edu/concern/publications/tm70mv... [2]: https://usda.library.cornell.edu/concern/publications/k3569432s?locale=en&page=9#release-items https://usda.library.cornell.edu/concern/publications/k35694...