areas exceeding 14.1 million acres ( 5.7 million hectares ) .
products and brand designations appearing in italics are trademarks of international paper or a related company .
industry segment results industrial packaging demand for industrial packaging products is closely correlated with non-durable industrial goods production , as well as with demand for processed foods , poultry , meat and agricultural products .
in addition to prices and volumes , major factors affecting the profitability of industrial packaging are raw material and energy costs , freight costs , manufacturing efficiency and product mix .
industrial packaging net sales and operating profits include the results of the temple-inland packaging operations from the date of acquisition in february 2012 and the results of the brazil packaging business from the date of acquisition in january 2013 .
in addition , due to the acquisition of a majority share of olmuksa international paper sabanci ambalaj sanayi ve ticaret a.s. , ( now called olmuksan international paper or olmuksan ) net sales for our corrugated packaging business in turkey are included in the business segment totals beginning in the first quarter of 2013 and the operating profits reflect a higher ownership percentage than in previous years .
net sales for 2013 increased 12% ( 12 % ) to $ 14.8 billion compared with $ 13.3 billion in 2012 , and 42% ( 42 % ) compared with $ 10.4 billion in 2011 .
operating profits were 69% ( 69 % ) higher in 2013 than in 2012 and 57% ( 57 % ) higher than in 2011 .
excluding costs associated with the acquisition and integration of temple-inland , the divestiture of three containerboard mills and other special items , operating profits in 2013 were 36% ( 36 % ) higher than in 2012 and 59% ( 59 % ) higher than in 2011 .
benefits from the net impact of higher average sales price realizations and an unfavorable mix ( $ 749 million ) were offset by lower sales volumes ( $ 73 million ) , higher operating costs ( $ 64 million ) , higher maintenance outage costs ( $ 16 million ) and higher input costs ( $ 102 million ) .
additionally , operating profits in 2013 include costs of $ 62 million associated with the integration of temple-inland , a gain of $ 13 million related to a bargain purchase adjustment on the acquisition of a majority share of our operations in turkey , and a net gain of $ 1 million for other items , while operating profits in 2012 included costs of $ 184 million associated with the acquisition and integration of temple-inland , mill divestiture costs of $ 91 million , costs associated with the restructuring of our european packaging business of $ 17 million and a $ 3 million gain for other items .
industrial packaging .

In millions
2013
2012
2011
Sales
$14,810
$13,280
$10,430
Operating Profit
1,801
1,066
1,147

north american industrial packaging net sales were $ 12.5 billion in 2013 compared with $ 11.6 billion in 2012 and $ 8.6 billion in 2011 .
operating profits in 2013 were $ 1.8 billion ( both including and excluding costs associated with the integration of temple-inland and other special items ) compared with $ 1.0 billion ( $ 1.3 billion excluding costs associated with the acquisition and integration of temple-inland and mill divestiture costs ) in 2012 and $ 1.1 billion ( both including and excluding costs associated with signing an agreement to acquire temple-inland ) in 2011 .
sales volumes decreased in 2013 compared with 2012 reflecting flat demand for boxes and the impact of commercial decisions .
average sales price realizations were significantly higher mainly due to the realization of price increases for domestic containerboard and boxes .
input costs were higher for wood , energy and recycled fiber .
freight costs also increased .
planned maintenance downtime costs were higher than in 2012 .
manufacturing operating costs decreased , but were offset by inflation and higher overhead and distribution costs .
the business took about 850000 tons of total downtime in 2013 of which about 450000 were market- related and 400000 were maintenance downtime .
in 2012 , the business took about 945000 tons of total downtime of which about 580000 were market-related and about 365000 were maintenance downtime .
operating profits in 2013 included $ 62 million of costs associated with the integration of temple-inland .
operating profits in 2012 included $ 184 million of costs associated with the acquisition and integration of temple-inland and $ 91 million of costs associated with the divestiture of three containerboard mills .
looking ahead to 2014 , compared with the fourth quarter of 2013 , sales volumes in the first quarter are expected to increase for boxes due to a higher number of shipping days offset by the impact from the severe winter weather events impacting much of the u.s .
input costs are expected to be higher for energy , recycled fiber , wood and starch .
planned maintenance downtime spending is expected to be about $ 51 million higher with outages scheduled at six mills compared with four mills in the 2013 fourth quarter .
manufacturing operating costs are expected to be lower .
however , operating profits will be negatively impacted by the adverse winter weather in the first quarter of 2014 .
emea industrial packaging net sales in 2013 include the sales of our packaging operations in turkey which are now fully consolidated .
net sales were $ 1.3 billion in 2013 compared with $ 1.0 billion in 2012 and $ 1.1 billion in 2011 .
operating profits in 2013 were $ 43 million ( $ 32 .

Question: Analyse this data from a financial earnings document. what was the increase in net sales in billions in 2013
Choices:
5.328
14.92
1.776
0.014
-1.776
Correct choice index: 2