(Unit: KRW million)

  2017 2016 2015
Operating Revenue 13,421 12,128 13,009
Operating profit 7,113 7,486 8,088
Net income 6,292 6,351 7,093
2017 Operating Revenue 13,421
Operating profit 7,113
Net income 6,292
2016 Operating Revenue 12,128
Operating profit 7,486
Net income 6,351
2015 Operating Revenue 13,009
Operating profit 8,088
Net income 7,093

Since inception, we continuously operate profitably without debt financing.