Table:
|  |  |  |  | (dollars in millions, except per share amounts) |  |
| --- | --- | --- | --- | --- | --- |
|  | 2019 | 2018 | 2017 | 2016 | 2015 |
| Results of Operations |  |  |  |  |  |
| Operating revenues | $131,868 | $130,863 | $ 126,034 | $ 125,980 | $ 131,620 |
| Operating income | 30,378 | 22,278 | 27,425 | 29,249 | 30,615 |
| Net income attributable to Verizon | 19,265 | 15,528 | 30,101 | 13,127 | 17,879 |
| Per common share – basic | 4.66 | 3.76 | 7.37 | 3.22 | 4.38 |
| Per common share – diluted | 4.65 | 3.76 | 7.36 | 3.21 | 4.37 |
| Cash dividends declared per common share | 2.435 | 2.385 | 2.335 | 2.285 | 2.230 |
| Net income attributable to noncontrolling interests | 523 | 511 | 449 | 481 | 496 |
| Financial Position |  |  |  |  |  |
| Total assets | $ 291,727 | $ 264,829 | $ 257,143 | $ 244,180 | $ 244,175 |
| Debt maturing within one year | 10,777 | 7,190 | 3,453 | 2,645 | 6,489 |
| Long-term debt | 100,712 | 105,873 | 113,642 | 105,433 | 103,240 |
| Employee benefit obligations | 17,952 | 18,599 | 22,112 | 26,166 | 29,957 |
| Noncontrolling interests | 1,440 | 1,565 | 1,591 | 1,508 | 1,414 |
| Equity attributable to Verizon | 61,395 | 53,145 | 43,096 | 22,524 | 16,428 |
Paragraphs:
Selected Financial Data
• Significant events affecting our historical earnings trends in 2018 through 2019 are described in “Special Items” in the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” section.
• 2017 data includes severance, pension and benefit charges, gain on spectrum license transactions, acquisition and integration related charges, product realignment charges, net gain on sale of divested businesses and early debt redemption costs. 2016 data includes severance, pension and benefit charges, gain on spectrum license transactions, net gain on sale of divested businesses and early debt redemption costs. 2015 data includes severance, pension and benefit credits and gain on spectrum license transactions.
• On January 1, 2019, we adopted several Accounting Standards Updates (ASUs) that were issued by the Financial Accounting Standards Board (FASB) using the modified retrospective basis. On January 1, 2018, we adopted several ASUs that were issued by the FASB. These standards were adopted on different bases, including: (1) prospective; (2) full retrospective; and (3) modified retrospective.
Based on the method of adoption, certain figures are not comparable, with full retrospective reflected in all periods. See Note 1 to the consolidated financial statements for additional information.
Question:
What was the average operating income for 2015-2019?
Answer: (30378 + 22278 + 27425 + 29249 + 30615) / 5 = 27989