· Primary energy fuel consumption

　　· Which source of fuel went down over the last 20 years: Coal

　　· What was the increase in the percentage of primary energy provided by natural gas over the last 20 years: 16%

　　· How much more about coal than electricity last year: 12.5 million

　　· How much energy delivered than other than petroleum last year: 162.5

　　· Profit & loss profit loss account

　　· If gross sales increased at the same rate, with would the Year 3 gross sales be: 46.898

　　· The tax rate increased from Year 1 to 2: True

　　· How much did Depreciation add onto the expenditure on raw and expenses in year2: 4.3%

　　· From year 1 to 2, expenditure on raw increased more, in percentage terms, than income from net sales: True

　　· Quality index chart

　　· If the trend for factory 3 from year 1 to 5 continues, what would be the quality index in year7: 75