{"pre_text": ["item 6 .", "selected financial data the following table sets forth our selected financial data .", "the table should be read in conjunction with item 7 and item 8 of this annual report on form 10-k. ."], "post_text": ["( 1 ) long-term debt does not include the current portion of long-term debt , which is included in current liabilities .", "( 2 ) free cash flow is a non-gaap financial measure and represents cash from operating activities less capital expenditures net of related grant proceeds .", "see liquidity and capital resources in item 7 for more information on this measure. ."], "table": [["( $ in millions except per share amounts )", "year ended december 31 2017", "year ended december 31 2016", "year ended december 31 2015", "year ended december 31 2014", "year ended december 31 2013"], ["sales and service revenues", "$ 7441", "$ 7068", "$ 7020", "$ 6957", "$ 6820"], ["goodwill impairment", "2014", "2014", "75", "47", "2014"], ["operating income ( loss )", "865", "858", "769", "655", "512"], ["net earnings ( loss )", "479", "573", "404", "338", "261"], ["total assets", "6374", "6352", "6024", "6239", "6190"], ["long-term debt ( 1 )", "1279", "1278", "1273", "1562", "1665"], ["total long-term obligations", "3225", "3356", "3260", "3562", "3277"], ["net cash provided by ( used in ) operating activities", "814", "822", "861", "755", "260"], ["free cash flow ( 2 )", "453", "537", "673", "590", "121"], ["dividends declared per share", "$ 2.52", "$ 2.10", "$ 1.70", "$ 1.00", "$ 0.50"], ["basic earnings ( loss ) per share", "$ 10.48", "$ 12.24", "$ 8.43", "$ 6.93", "$ 5.25"], ["diluted earnings ( loss ) per share", "$ 10.46", "$ 12.14", "$ 8.36", "$ 6.86", "$ 5.18"]], "table_ori": [["", "Year Ended December 31"], ["($ in millions, except per share amounts)", "2017", "2016", "2015", "2014", "2013"], ["Sales and service revenues", "$7,441", "$7,068", "$7,020", "$6,957", "$6,820"], ["Goodwill impairment", "—", "—", "75", "47", "—"], ["Operating income (loss)", "865", "858", "769", "655", "512"], ["Net earnings (loss)", "479", "573", "404", "338", "261"], ["Total assets<sup></sup>", "6,374", "6,352", "6,024", "6,239", "6,190"], ["Long-term debt<sup>(1)</sup>", "1,279", "1,278", "1,273", "1,562", "1,665"], ["Total long-term obligations<sup></sup>", "3,225", "3,356", "3,260", "3,562", "3,277"], ["Net cash provided by (used in) operating activities", "814", "822", "861", "755", "260"], ["Free cash flow<sup>(2)</sup>", "453", "537", "673", "590", "121"], ["Dividends declared per share", "$2.52", "$2.10", "$1.70", "$1.00", "$0.50"], ["Basic earnings (loss) per share", "$10.48", "$12.24", "$8.43", "$6.93", "$5.25"], ["Diluted earnings (loss) per share", "$10.46", "$12.14", "$8.36", "$6.86", "$5.18"]]}

Question: what was the return on total assets during 2013?
Evidence:
table_4: ( $ in millions except per share amounts ) the net earnings ( loss ) of year ended december 31 2017 is 479 ; the net earnings ( loss ) of year ended december 31 2016 is 573 ; the net earnings ( loss ) of year ended december 31 2015 is 404 ; the net earnings ( loss ) of year ended december 31 2014 is 338 ; the net earnings ( loss ) of year ended december 31 2013 is 261 ;
table_5: ( $ in millions except per share amounts ) the total assets of year ended december 31 2017 is 6374 ; the total assets of year ended december 31 2016 is 6352 ; the total assets of year ended december 31 2015 is 6024 ; the total assets of year ended december 31 2014 is 6239 ; the total assets of year ended december 31 2013 is 6190 ;
Program: divide(261, 6190)
Answer:
str_answer: 4.2%
exe_answer: 0.04216