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Note 1. Basis of Presentation Business Description (Details) | Dec. 31, 2018 Countries | Dec. 31, 2018 franchisedandcompanyownedoffices | Dec. 31, 2018 Brokerage_Offices | Dec. 31, 2018 employees | Dec. 31, 2017 franchisedandcompanyownedoffices | Dec. 31, 2016 franchisedandcompanyownedoffices | Dec. 31, 2015 franchisedandcompanyownedoffices
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Number of Countries in which Entity Operates | Countries | 113 |  |  |  |  |  |
Company Owned Real Estate Brokerage Services |  |  |  |  |  |  |
Number of Independent Sales Associates |  |  |  | 50,200 |  |  |
Number of offices |  | 755 | 760 |  | 789 | 789 | 787
Worldwide | Franchised and Company Owned |  |  |  |  |  |  |
Number of Independent Sales Associates |  |  |  | 299,400 |  |  |
Number of offices | franchisedandcompanyownedoffices |  | 16,600 |  |  |  |  |
United States | Franchised and Company Owned |  |  |  |  |  |  |
Number of Independent Sales Associates |  |  |  | 191,700 |  |  |
Number of offices | Brokerage_Offices |  |  | 6,000 |  |  |  |

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