in rspec_stats/rspec_stats.rb [41:48]
def queries_per_test
overall_per_day do |_date, rows|
total_queries = rows.sum { |r| r['total_queries'].to_f }
number_of_tests = rows.sum { |r| r['number_of_tests'].to_f }
total_queries / number_of_tests
end
end