pre_text: ITEM 6. SELECTED FINANCIAL DATA The selected financial data presented below has been derived from our audited consolidated financial statements. This data should be read in conjunction with “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Item 8. Financial Statements and Supplementary Data” of this Annual Report. (1) We elected to early adopt Accounting Standards Update (“ASU”) 2016-09 “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”) in 2016, which requires us, among other things, to prospectively record excess tax benefits as a reduction of the provision for income taxes in the consolidated statement of operations, whereas they were previously recognized in equity. (2) We retrospectively adopted ASU 2014-09, “Revenue from Contracts with Customers (Topic 606)” in 2018. As a result, we have adjusted balances for 2017 and 2016. We have not adjusted 2015 for ASU 2014-09.
table: (in thousands, except per share amounts) 2019 2018 2017 2016 2015
table: Consolidated Statements of Operations Data (1) (2):
table: Revenue:
table: Perpetual license $80,015 109,863 132,883 145,053 166,305
table: Term license 199,433 178,256 206,411 152,231 109,283
table: Maintenance 280,580 263,875 242,320 218,635 202,802
table: Cloud 133,746 82,627 51,097 40,647 30,626
table: Consulting 217,609 256,960 255,756 205,663 173,679
table: Total revenue $911,383 891,581 888,467 762,229 682,695
table: (Loss) income from operations $(134,878) $(17,032) $93,177 $50,644 $64,661
table: Net (loss) income $(90,433) $10,617 $98,548 $45,015 $36,322
table: (Loss) earnings per share
table: Basic $(1.14) $0.14 $1.27 $0.59 $0.47
table: Diluted $(1.14) $0.13 $1.19 $0.56 $0.46
table: Cash dividends declared per common share $0.12 $0.12 $0.12 $0.12 $0.12
question: Analyse this data from a financial earnings document. What is the total revenue earned from maintenance in 2017 and 2018?