70.
Study the given table and answer the question that follows. The table represents the number of scooters (in thousands) manufactured by four companies A, B, C, and D from the period 2012 to 2015.
The average number of scooters produced by company D is what percent (rounded off to 2 decimal places) more than the combined average number of scooters produced by the three companies A, B, and C?
Years A B C D
2012 360 420 380 520
2013 580 940 570 980
2014 1000 780 1020 1090
2015 1240 950 1180 1660