{"pre_text": ["other operating and administrative expenses increased slightly in 2015 due to increased expenses asso- ciated with our larger film slate .", "other operating and administrative expenses increased in 2014 primarily due to the inclusion of fandango , which was previously presented in our cable networks segment .", "advertising , marketing and promotion expenses advertising , marketing and promotion expenses consist primarily of expenses associated with advertising for our theatrical releases and the marketing of our films on dvd and in digital formats .", "we incur significant marketing expenses before and throughout the release of a film in movie theaters .", "as a result , we typically incur losses on a film prior to and during the film 2019s exhibition in movie theaters and may not realize profits , if any , until the film generates home entertainment and content licensing revenue .", "the costs associated with producing and marketing films have generally increased in recent years and may continue to increase in the future .", "advertising , marketing and promotion expenses increased in 2015 primarily due to higher promotional costs associated with our larger 2015 film slate and increased advertising expenses for fandango .", "advertising , marketing and promotion expenses decreased in 2014 primarily due to fewer major film releases compared to theme parks segment results of operations year ended december 31 ( in millions ) 2015 2014 2013 % (  % ) change 2014 to 2015 % (  % ) change 2013 to 2014 ."], "post_text": ["operating income before depreciation and amortization $ 1464 $ 1096 $ 943 33.5% ( 33.5 % ) 16.3% ( 16.3 % ) theme parks segment 2013 revenue in 2015 , our theme parks segment revenue was generated primarily from ticket sales and guest spending at our universal theme parks in orlando , florida and hollywood , california , as well as from licensing and other fees .", "in november 2015 , nbcuniversal acquired a 51% ( 51 % ) interest in universal studios japan .", "guest spending includes in-park spending on food , beverages and merchandise .", "guest attendance at our theme parks and guest spending depend heavily on the general environment for travel and tourism , including consumer spend- ing on travel and other recreational activities .", "licensing and other fees relate primarily to our agreements with third parties that own and operate the universal studios singapore theme park , as well as from the universal studios japan theme park , to license the right to use the universal studios brand name and other intellectual property .", "theme parks segment revenue increased in 2015 and 2014 primarily due to increases in guest attendance and increases in guest spending at our orlando and hollywood theme parks .", "the increase in 2015 was pri- marily due to the continued success of our attractions , including the wizarding world of harry potter 2122 2014 diagon alley 2122 in orlando and the fast & furious 2122 2014 supercharged 2122 studio tour and the simpson 2019s springfield attraction in hollywood , both of which opened in 2015 .", "in addition , theme parks segment revenue in 2015 includes $ 169 million of revenue attributable to universal studios japan for the period from november 13 , 2015 to december 31 , 2015 .", "the increase in 2014 was primarily due to new attractions , such as the wizarding world of harry potter 2122 2014 diagon alley 2122 in orlando , which opened in july 2014 , and despicable me : minion mayhem in hollywood .", "59 comcast 2015 annual report on form 10-k ."], "table": [["year ended december 31 ( in millions )", "2015", "2014", "2013", "% (  % ) change 2014 to 2015", "% (  % ) change 2013 to 2014"], ["revenue", "$ 3339", "$ 2623", "$ 2235", "27.3% ( 27.3 % )", "17.3% ( 17.3 % )"], ["operating costs and expenses", "1875", "1527", "1292", "22.8", "18.1"], ["operating income before depreciation and amortization", "$ 1464", "$ 1096", "$ 943", "33.5% ( 33.5 % )", "16.3% ( 16.3 % )"]], "table_ori": [["Year ended December 31 (in millions)", "2015", "2014", "2013", "% Change 2014 to 2015", "% Change 2013 to 2014"], ["Revenue", "$3,339", "$2,623", "$2,235", "27.3%", "17.3%"], ["Operating costs and expenses", "1,875", "1,527", "1,292", "22.8", "18.1"], ["Operating income before depreciation and amortization", "$1,464", "$1,096", "$943", "33.5%", "16.3%"]]}

Question: what was the average operating income before depreciation and amortization from 2013 to 2015
Evidence:
text_8: operating income before depreciation and amortization $ 1464 $ 1096 $ 943 33.5% ( 33.5 % ) 16.3% ( 16.3 % ) theme parks segment 2013 revenue in 2015 , our theme parks segment revenue was generated primarily from ticket sales and guest spending at our universal theme parks in orlando , florida and hollywood , california , as well as from licensing and other fees .
Program: add(1464, 1096), add(943, #0), add(#1, const_3), divide(#2, const_2)
Answer:
str_answer: 1167.7
exe_answer: 1753