considering the year 2013 , what is the sales to operating income ratio?
Important information:
table_1: the sales of 2013 is $ 451.1 ; the sales of 2012 is $ 420.1 ; the sales of 2011 is $ 400.6 ;
table_2: the operating income of 2013 is 65.5 ; the operating income of 2012 is 44.6 ; the operating income of 2011 is 62.8 ;
text_3: operating income of $ 65.5 increased from the higher lng project activity .
Reasoning Steps:
Step: divide1-1(451.1, 65.5) = 6.88
Program:
divide(451.1, 65.5)
Program (Nested):
divide(451.1, 65.5)

Please answer the following financial question based on the context provided. Make sure to give the answer in raw number, not in percentage and without any units. If the question asks for percentage the value should be less than 1
Context:
equipment and energy .
Table
                 | 2013    | 2012    | 2011   
sales            | $ 451.1 | $ 420.1 | $ 400.6
operating income | 65.5    | 44.6    | 62.8   
2013 vs . 2012 sales of $ 451.1 increased primarily from higher lng project activity . operating income of $ 65.5 increased from the higher lng project activity . the sales backlog for the equipment business at 30 september 2013 was $ 402 , compared to $ 450 at 30 september 2012 . it is expected that approximately $ 250 of the backlog will be completed during 2014 . 2012 vs . 2011 sales of $ 420.1 increased 5% ( 5 % ) , or $ 19.5 , reflecting higher air separation unit ( asu ) activity . operating income of $ 44.6 decreased 29% ( 29 % ) , or $ 18.2 , reflecting lower lng project activity . the sales backlog for the equipment business at 30 september 2012 was $ 450 , compared to $ 334 at 30 september 2011 . other operating income ( loss ) primarily includes other expense and income that cannot be directly associated with the business segments , including foreign exchange gains and losses . also included are lifo inventory valuation adjustments , as the business segments use fifo , and the lifo pool valuation adjustments are not allocated to the business segments . other also included stranded costs resulting from discontinued operations , as these costs were not reallocated to the businesses in 2012 . 2013 vs . 2012 other operating loss was $ 4.7 , compared to $ 6.6 in the prior year . the current year includes an unfavorable lifo adjustment versus the prior year of $ 11 . the prior year loss included stranded costs from discontinued operations of $ 10 . 2012 vs . 2011 other operating loss was $ 6.6 , compared to $ 39.3 in the prior year , primarily due to a reduction in stranded costs , a decrease in the lifo adjustment as a result of decreases in inventory values , and favorable foreign exchange , partially offset by gains on asset sales in the prior year. .
Question: 
considering the year 2013 , what is the sales to operating income ratio?
Important information:
table_1: the sales of 2013 is $ 451.1 ; the sales of 2012 is $ 420.1 ; the sales of 2011 is $ 400.6 ;
table_2: the operating income of 2013 is 65.5 ; the operating income of 2012 is 44.6 ; the operating income of 2011 is 62.8 ;
text_3: operating income of $ 65.5 increased from the higher lng project activity .
Reasoning Steps:
Step: divide1-1(451.1, 65.5) = 6.88
Program:
divide(451.1, 65.5)
Program (Nested):
divide(451.1, 65.5)
