lockheed martin corporation management 2019s discussion and analysis of financial condition and results of operations december 31 , 2002 space systems space systems 2019 operating results included the following : ( in millions ) 2002 2001 2000 .

2002: net sales: 7384
operating profit: 443
2001: net sales: 6836
operating profit: 360
2000: net sales: 7339
operating profit: 345

net sales for space systems increased by 8% ( 8 % ) in 2002 compared to 2001 . the increase in sales for 2002 resulted from higher volume in government space of $ 370 million and commercial space of $ 180 million . in government space , increases of $ 470 million in government satellite programs and $ 130 million in ground systems activities more than offset volume declines of $ 175 million on government launch vehi- cles and $ 55 million on strategic missile programs . the increase in commercial space sales is primarily attributable to an increase in launch vehicle activities , with nine commercial launches during 2002 compared to six in 2001 . net sales for the segment decreased by 7% ( 7 % ) in 2001 com- pared to 2000 . the decrease in sales for 2001 resulted from volume declines in commercial space of $ 560 million , which more than offset increases in government space of $ 60 million . in commercial space , sales declined due to volume reductions of $ 480 million in commercial launch vehicle activities and $ 80 million in satellite programs . there were six launches in 2001 compared to 14 launches in 2000 . the increase in gov- ernment space resulted from a combined increase of $ 230 mil- lion related to higher volume on government satellite programs and ground systems activities . these increases were partially offset by a $ 110 million decrease related to volume declines in government launch vehicle activity , primarily due to program maturities , and by $ 50 million due to the absence in 2001 of favorable adjustments recorded on the titan iv pro- gram in 2000 . operating profit for the segment increased 23% ( 23 % ) in 2002 as compared to 2001 , mainly driven by the commercial space business . reduced losses in commercial space during 2002 resulted in increased operating profit of $ 90 million when compared to 2001 . commercial satellite manufacturing losses declined $ 100 million in 2002 as operating performance improved and satellite deliveries increased . in the first quarter of 2001 , a $ 40 million loss provision was recorded on certain commercial satellite manufacturing contracts . due to the industry-wide oversupply and deterioration of pricing in the commercial launch market , financial results on commercial launch vehicles continue to be challenging . during 2002 , this trend led to a decline in operating profit of $ 10 million on commercial launch vehicles when compared to 2001 . this decrease was primarily due to lower profitability of $ 55 mil- lion on the three additional launches in the current year , addi- tional charges of $ 60 million ( net of a favorable contract adjustment of $ 20 million ) for market and pricing pressures and included the adverse effect of a $ 35 million adjustment for commercial launch vehicle contract settlement costs . the 2001 results also included charges for market and pricing pressures , which reduced that year 2019s operating profit by $ 145 million . the $ 10 million decrease in government space 2019s operating profit for the year is primarily due to the reduced volume on government launch vehicles and strategic missile programs , which combined to decrease operating profit by $ 80 million , partially offset by increases of $ 40 million in government satellite programs and $ 30 million in ground systems activities . operating profit for the segment increased by 4% ( 4 % ) in 2001 compared to 2000 . operating profit increased in 2001 due to a $ 35 million increase in government space partially offset by higher year-over-year losses of $ 20 million in commercial space . in government space , operating profit increased due to the impact of higher volume and improved performance in ground systems and government satellite programs . the year- to-year comparison of operating profit was not affected by the $ 50 million favorable titan iv adjustment recorded in 2000 discussed above , due to a $ 55 million charge related to a more conservative assessment of government launch vehi- cle programs that was recorded in the fourth quarter of 2000 . in commercial space , decreased operating profit of $ 15 mil- lion on launch vehicles more than offset lower losses on satel- lite manufacturing activities . the commercial launch vehicle operating results included $ 60 million in higher charges for market and pricing pressures when compared to 2000 . these negative adjustments were partially offset by $ 50 million of favorable contract adjustments on certain launch vehicle con- tracts . commercial satellite manufacturing losses decreased slightly from 2000 and included the adverse impact of a $ 40 million loss provision recorded in the first quarter of 2001 for certain commercial satellite contracts related to schedule and technical issues. .

Questions:
what is the operating profit of 2002?
and that of 2001?
what is the total operating profit of 2002 and 2001?
then what is the total operating profit if we also include the year of 2000?
what is the average of these 3 years?

Answers:
443
360
803
1148
382.7