tissue pulp due to strong market demand , partic- ularly from asia . average sales price realizations improved significantly in 2007 , principally reflecting higher average prices for softwood , hardwood and fluff pulp . operating earnings in 2007 were $ 104 mil- lion compared with $ 48 million in 2006 and $ 37 mil- lion in 2005 . the benefits from higher sales price realizations were partially offset by increased input costs for energy , chemicals and freight . entering the first quarter of 2008 , demand for market pulp remains strong , and average sales price realiza- tions should increase slightly . however , input costs for energy , chemicals and freight are expected to be higher , and increased spending is anticipated for planned mill maintenance outages . industrial packaging demand for industrial packaging products is closely correlated with non-durable industrial goods pro- duction , 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 effi- ciency and product mix . industrial packaging net sales for 2007 increased 6% ( 6 % ) to $ 5.2 billion compared with $ 4.9 bil- lion in 2006 , and 13% ( 13 % ) compared with $ 4.6 billion in 2005 . operating profits in 2007 were 26% ( 26 % ) higher than in 2006 and more than double 2005 earnings . bene- fits from improved price realizations ( $ 147 million ) , sales volume increases net of increased lack of order downtime ( $ 3 million ) , a more favorable mix ( $ 31 million ) , strong mill and converting operations ( $ 33 million ) and other costs ( $ 47 million ) were partially offset by the effects of higher raw material costs ( $ 76 million ) and higher freight costs ( $ 18 million ) . in addition , a gain of $ 13 million was recognized in 2006 related to a sale of property in spain and costs of $ 52 million were incurred in 2007 related to the conversion of the paper machine at pensacola to production of lightweight linerboard . the segment took 165000 tons of downtime in 2007 which included 16000 tons of market-related downtime compared with 135000 tons of downtime in 2006 of which none was market-related . industrial packaging in millions 2007 2006 2005 .

2007: sales: 5245
operating profit: 501
2006: sales: 4925
operating profit: 399
2005: sales: 4625
operating profit: 219

north american industrial packaging net sales for 2007 were $ 3.9 billion , compared with $ 3.7 billion in 2006 and $ 3.6 billion in 2005 . operating profits in 2007 were $ 407 million , up from $ 327 mil- lion in 2006 and $ 170 million in 2005 . containerboard shipments were higher in 2007 compared with 2006 , including production from the paper machine at pensacola that was converted to lightweight linerboard during 2007 . average sales price realizations were significantly higher than in 2006 reflecting price increases announced early in 2006 and in the third quarter of 2007 . margins improved reflecting stronger export demand . manu- facturing performance was strong , although costs associated with planned mill maintenance outages were higher due to timing of outages . raw material costs for wood , energy , chemicals and recycled fiber increased significantly . operating results for 2007 were also unfavorably impacted by $ 52 million of costs associated with the conversion and startup of the pensacola paper machine . u.s . converting sales volumes were slightly lower in 2007 compared with 2006 reflecting softer customer box demand . earnings improvement in 2007 bene- fited from the realization of box price increases announced in early 2006 and late 2007 . favorable manufacturing operations and higher sales prices for waste fiber more than offset significantly higher raw material and freight costs . looking ahead to the first quarter of 2008 , sales volumes are expected to increase slightly , and results should benefit from a full-quarter impact of the price increases announced in the third quarter of 2007 . however , additional mill maintenance outages are planned for the first quarter , and freight and input costs are expected to rise , particularly for wood and energy . manufacturing operations should be favorable compared with the fourth quarter . european industrial packaging net sales for 2007 were $ 1.1 billion , up from $ 1.0 billion in 2006 and $ 880 million in 2005 . sales volumes were about flat as early stronger demand in the industrial segment weakened in the second half of the year . operating profits in 2007 were $ 88 million compared with $ 69 million in 2006 and $ 53 million in 2005 . sales margins improved reflecting increased sales prices for boxes . conversion costs were favorable as the result of manufacturing improvement programs . entering the first quarter of 2008 , sales volumes should be strong seasonally across all regions as the winter fruit and vegetable season continues . profit margins , however , are expected to be somewhat lower. .

Questions:
in the year of 2007, what was the amount of the industrial packaging sales that was from europe, in millions?
and what was the total of those sales?
what percentage, then, of this total did that amount represent?
and what was this percentage in the previous year, in 2006?

Answers:
1100
5245
21%
20%