(a) How much coal did Eskom burn (i) in 2010, (ii) in 2011, (iii) in 2012, (iv) in 2013, (v) in 2014 and (vi) from 1 January 2015 up to the latest specified date for which information is available, (b) how much coal was burned in each province (i) in 2010, (ii) in 2011, (iii) in 2012, (iv) in 2013, (v) in 2014 and (vi) from 1 January 2015 up to the latest specified date for which information is available and (c) for each amount of coal burned in each province, from which province did this coal come and (d) how much coal will Eskom burn in 2020?