{"pre_text": ["management 2019s discussion and analysis 74 jpmorgan chase & co./2017 annual report treasury and cio overview treasury and cio is predominantly responsible for measuring , monitoring , reporting and managing the firm 2019s liquidity , funding and structural interest rate and foreign exchange risks , as well as executing the firm 2019s capital plan .", "the risks managed by treasury and cio arise from the activities undertaken by the firm 2019s four major reportable business segments to serve their respective client bases , which generate both on- and off-balance sheet assets and liabilities .", "treasury and cio seek to achieve the firm 2019s asset-liability management objectives generally by investing in high- quality securities that are managed for the longer-term as part of the firm 2019s investment securities portfolio .", "treasury and cio also use derivatives to meet the firm 2019s asset- liability management objectives .", "for further information on derivatives , see note 5 .", "the investment securities portfolio primarily consists of agency and nonagency mortgage- backed securities , u.s .", "and non-u.s .", "government securities , obligations of u.s .", "states and municipalities , other abs and corporate debt securities .", "at december 31 , 2017 , the investment securities portfolio was $ 248.0 billion , and the average credit rating of the securities comprising the portfolio was aa+ ( based upon external ratings where available and where not available , based primarily upon internal ratings that correspond to ratings as defined by s&p and moody 2019s ) .", "see note 10 for further information on the details of the firm 2019s investment securities portfolio .", "for further information on liquidity and funding risk , see liquidity risk management on pages 92 201397 .", "for information on interest rate , foreign exchange and other risks , see market risk management on pages 121-128 .", "selected income statement and balance sheet data as of or for the year ended december 31 , ( in millions ) 2017 2016 2015 ."], "post_text": ["afs investment securities ( average ) 219345 226892 264758 htm investment securities ( average ) 47927 51358 50044 investment securities portfolio ( average ) 267272 278250 314802 afs investment securities ( period-end ) 200247 236670 238704 htm investment securities ( period-end ) 47733 50168 49073 investment securities portfolio ( period 2013end ) 247980 286838 287777 ."], "table": [["as of or for the year ended december 31 ( in millions )", "2017", "2016", "2015"], ["securities gains/ ( losses )", "$ -78 ( 78 )", "$ 132", "$ 190"], ["afs investment securities ( average )", "219345", "226892", "264758"], ["htm investment securities ( average )", "47927", "51358", "50044"], ["investment securities portfolio ( average )", "267272", "278250", "314802"], ["afs investment securities ( period-end )", "200247", "236670", "238704"], ["htm investment securities ( period-end )", "47733", "50168", "49073"], ["investment securities portfolio ( period 2013end )", "247980", "286838", "287777"]], "table_ori": [["As of or for the year ended December 31, (in millions)", "2017", "2016", "2015"], ["Securities gains/(losses)", "$(78)", "$132", "$190"], ["AFS investment securities (average)", "219,345", "226,892", "264,758"], ["HTM investment securities (average)", "47,927", "51,358", "50,044"], ["Investment securities portfolio (average)", "267,272", "278,250", "314,802"], ["AFS investment securities (period-end)", "200,247", "236,670", "238,704"], ["HTM investment securities (period-end)", "47,733", "50,168", "49,073"], ["Investment securities portfolio (period–end)", "247,980", "286,838", "287,777"]]}

Question: in 2017 what was the ratio of the afs investment securities at period-end to the average
Evidence:
table_5: as of or for the year ended december 31 ( in millions ) the afs investment securities ( period-end ) of 2017 is 200247 ; the afs investment securities ( period-end ) of 2016 is 236670 ; the afs investment securities ( period-end ) of 2015 is 238704 ;
table_2: as of or for the year ended december 31 ( in millions ) the afs investment securities ( average ) of 2017 is 219345 ; the afs investment securities ( average ) of 2016 is 226892 ; the afs investment securities ( average ) of 2015 is 264758 ;
Program: divide(200247, 219345)
Answer:
str_answer: 0.913
exe_answer: 0.91293