To use these data in his framework, He calculated “per farmer annual earnings” for 2009 which, for ease of discussion, He refer to here after as “earnings” and used it as a proxy for farm profit. He calculated earnings from survey responses and answers to interview questions, including inquiries about general profitability, gross sales, and net profits in 2009; farmers’ own salaries (whether and how much they formally pay themselves, or whether they use “what's left over” accounting);