products and software , as well as ongoing investment in next-generation technologies , partially offset by savings from cost-reduction initiatives . reorganization of business charges increased due to employee severance costs and expenses related to the exit of a facility . sg&a expenses decreased , primarily due to lower marketing expenses and savings from cost-reduction initiatives , partially offset by increased expenditures on information technology upgrades . as a percentage of net sales in 2007 as compared to 2006 , gross margin and operating margin decreased , and sg&a expenses and r&d expenditures increased . the segment 2019s backlog was $ 647 million at december 31 , 2007 , compared to $ 1.4 billion at december 31 , 2006 . this decrease in backlog was primarily due to a decline in customer demand driven by the segment 2019s limited product portfolio . the segment shipped 159.1 million units in 2007 , a 27% ( 27 % ) decrease compared to shipments of 217.4 million units in 2006 . the overall decrease reflects decreased unit shipments of products for all technologies . for the full year 2007 , unit shipments : ( i ) decreased substantially in asia and emea , ( ii ) decreased in north america , and ( iii ) increased in latin america . although unit shipments by the segment decreased in 2007 , total unit shipments in the worldwide handset market increased by approximately 16% ( 16 % ) . the segment estimates its worldwide market share was approximately 14% ( 14 % ) for the full year 2007 , a decrease of approximately 8 percentage points versus full year 2006 . in 2007 , asp decreased approximately 9% ( 9 % ) compared to 2006 . the overall decrease in asp was driven primarily by changes in the product-tier and geographic mix of sales . by comparison , asp decreased approximately 11% ( 11 % ) in 2006 and 10% ( 10 % ) in 2005 . the segment has several large customers located throughout the world . in 2007 , aggregate net sales to the segment 2019s five largest customers accounted for approximately 42% ( 42 % ) of the segment 2019s net sales . besides selling directly to carriers and operators , the segment also sells products through a variety of third-party distributors and retailers , which account for approximately 33% ( 33 % ) of the segment 2019s net sales . the largest of these distributors was brightstar corporation . although the u.s . market continued to be the segment 2019s largest individual market , many of our customers , and more than 54% ( 54 % ) of our segment 2019s 2007 net sales , were outside the u.s . the largest of these international markets were brazil , china and mexico . home and networks mobility segment the home and networks mobility segment designs , manufactures , sells , installs and services : ( i ) digital video , internet protocol video and broadcast network interactive set-tops , end-to-end video delivery systems , broadband access infrastructure platforms , and associated data and voice customer premise equipment to cable television and telecom service providers ( collectively , referred to as the 201chome business 201d ) , and ( ii ) wireless access systems , including cellular infrastructure systems and wireless broadband systems , to wireless service providers ( collectively , referred to as the 201cnetwork business 201d ) . in 2008 , the segment 2019s net sales represented 33% ( 33 % ) of the company 2019s consolidated net sales , compared to 27% ( 27 % ) in 2007 and 21% ( 21 % ) in 2006 . ( dollars in millions ) 2008 2007 2006 2008 20142007 2007 20142006 years ended december 31 percent change .

years ended december 31 2008: segment net sales: 10086
operating earnings: 918
years ended december 31 2007: segment net sales: 10014
operating earnings: 709
years ended december 31 2006: segment net sales: 9164
operating earnings: 787
years ended december 31 2008 20142007: segment net sales: -1
operating earnings: -29
2007 20142006: segment net sales: -9
operating earnings: -10

segment results 20142008 compared to 2007 in 2008 , the segment 2019s net sales increased 1% ( 1 % ) to $ 10.1 billion , compared to $ 10.0 billion in 2007 . the 1% ( 1 % ) increase in net sales primarily reflects a 16% ( 16 % ) increase in net sales in the home business , partially offset by an 11% ( 11 % ) decrease in net sales in the networks business . the 16% ( 16 % ) increase in net sales in the home business is primarily driven by a 17% ( 17 % ) increase in net sales of digital entertainment devices , reflecting a 19% ( 19 % ) increase in unit shipments to 18.0 million units , partially offset by lower asp due to product mix shift and pricing pressure . the 11% ( 11 % ) decrease in net sales in the networks business was primarily driven by : ( i ) the absence of net sales by the embedded communication computing group ( 201cecc 201d ) that was divested at the end of 2007 , and ( ii ) lower net sales of iden , gsm and cdma infrastructure equipment , partially offset by higher net sales of umts infrastructure equipment . on a geographic basis , the 1% ( 1 % ) increase in net sales was primarily driven by higher net sales in latin america and asia , partially offset by lower net sales in north america . the increase in net sales in latin america was 63management 2019s discussion and analysis of financial condition and results of operations %%transmsg*** transmitting job : c49054 pcn : 066000000 ***%%pcmsg|63 |00024|yes|no|02/24/2009 12:31|0|0|page is valid , no graphics -- color : n| .

Questions:
what was the average segment sales in 2008?
what was the average segment sales in 2007?
what is the sum?
what was the average segment sales in 2006?
what now is the sum?
what is the average per year?

Answers:
10086
10014
20100
10086
30186
10062