the following is a summary of our floor space by business segment at december 31 , 2010 : ( square feet in millions ) owned leased government- owned total .
[['( square feet in millions )', 'owned', 'leased', 'government-owned', 'total'], ['aeronautics', '5.2', '3.7', '15.2', '24.1'], ['electronic systems', '10.3', '11.5', '7.1', '28.9'], ['information systems & global solutions', '2.6', '7.9', '2014', '10.5'], ['space systems', '8.6', '1.6', '.9', '11.1'], ['corporate activities', '2.9', '.8', '2014', '3.7'], ['total', '29.6', '25.5', '23.2', '78.3']]
some of our owned properties , primarily classified under corporate activities , are leased to third parties .in the area of manufacturing , most of the operations are of a job-order nature , rather than an assembly line process , and productive equipment has multiple uses for multiple products .management believes that all of our major physical facilities are in good condition and are adequate for their intended use .item 3 .legal proceedings we are a party to or have property subject to litigation and other proceedings , including matters arising under provisions relating to the protection of the environment .we believe the probability is remote that the outcome of these matters will have a material adverse effect on the corporation as a whole , notwithstanding that the unfavorable resolution of any matter may have a material effect on our net earnings in any particular quarter .we cannot predict the outcome of legal proceedings with certainty .these matters include the proceedings summarized in note 14 2013 legal proceedings , commitments , and contingencies beginning on page 78 of this form 10-k .from time-to-time , agencies of the u.s .government investigate whether our operations are being conducted in accordance with applicable regulatory requirements .u.s .government investigations of us , whether relating to government contracts or conducted for other reasons , could result in administrative , civil , or criminal liabilities , including repayments , fines , or penalties being imposed upon us , or could lead to suspension or debarment from future u.s .government contracting .u.s .government investigations often take years to complete and many result in no adverse action against us .we are subject to federal and state requirements for protection of the environment , including those for discharge of hazardous materials and remediation of contaminated sites .as a result , we are a party to or have our property subject to various lawsuits or proceedings involving environmental protection matters .due in part to their complexity and pervasiveness , such requirements have resulted in us being involved with related legal proceedings , claims , and remediation obligations .the extent of our financial exposure cannot in all cases be reasonably estimated at this time .for information regarding these matters , including current estimates of the amounts that we believe are required for remediation or clean-up to the extent estimable , see 201ccritical accounting policies 2013 environmental matters 201d in management 2019s discussion and analysis of financial condition and results of operations beginning on page 45 , and note 14 2013 legal proceedings , commitments , and contingencies beginning on page 78 of this form 10-k .item 4 .( removed and reserved ) item 4 ( a ) .executive officers of the registrant our executive officers are listed below , as well as information concerning their age at december 31 , 2010 , positions and offices held with the corporation , and principal occupation and business experience over the past five years .there were no family relationships among any of our executive officers and directors .all officers serve at the pleasure of the board of directors .linda r .gooden ( 57 ) , executive vice president 2013 information systems & global solutions ms .gooden has served as executive vice president 2013 information systems & global solutions since january 2007 .she previously served as deputy executive vice president 2013 information & technology services from october 2006 to december 2006 , and president , lockheed martin information technology from september 1997 to december 2006 .christopher j .gregoire ( 42 ) , vice president and controller ( chief accounting officer ) mr .gregoire has served as vice president and controller ( chief accounting officer ) since march 2010 .he previously was employed by sprint nextel corporation from august 2006 to may 2009 , most recently as principal accounting officer and assistant controller , and was a partner at deloitte & touche llp from september 2003 to july 2006. .

Question: what percentage of total floor space by business segment at december 31 , 2010 is owned?
Answer: 38%