Property, Plants and Equipment Facilities Equipment 28 We develop our customer experience systems over a system of UNIX, Linux and Windows servers owned or leased by us. We use a variety of software products in our development centers, including products by Our leases expire on various dates from calendar years 2013 through 2028, not including various options to terminate or extend lease terms. (*) Includes space sublet to third parties. We lease land and buildings for our executive offices, sales, marketing, administrative, development and support centers. We lease an aggregate of approximately 3.0 million square feet worldwide, including significant leases in the United States, Israel, Canada, Cyprus, India and the United Kingdom. Our aggregate annual lease costs with respect to our properties as of October 31, 2013, including maintenance and other related costs, were approximately $54 million. The following table summarizes information with respect to the principal facilities leased by us and our subsidiaries as of October 31, 2013: Location Area (Sq. Feet) United States: St. Louis, MO .......................................................... 81,238 San Jose, CA(*) ......................................................... 112,120 Champaign, IL .......................................................... 174,223 Eldorado Hills, CA(*) .................................................... 113,290 Others ................................................................ 211,459 Total ............................................................... 692,330 Israel: Ra’anana .............................................................. 740,431 Sderot ................................................................ 73,900 Haifa ................................................................. 38,133 Others(*) .............................................................. 92,226 Total ............................................................... 944,690 Canada: Toronto(*) ............................................................. 26,422 Montreal .............................................................. 60,274 Ottawa ................................................................ 40,422 Total ............................................................... 127,118 Cyprus (Limassol) ......................................................... 65,854 India: Pune .................................................................. 622,842 Delhi ................................................................. 136,169 Mumbai ............................................................... 2,099 Total ............................................................... 761,110 United Kingdom(*) ........................................................ 94,417 Other locations (32 countries) ................................................ 269,143 Total ................................................................... 2,954,662