Table 4. Estimates of the Total Housing Inventory for the United States: Fourth Quarter 1999 and 1998 (Estimates are in thousands and may not add to total, due to rounding) Fourth Fourth Standard quarter quarter error on Standard 1999 Type 1999 1998 1999 error on Percent estimate estimate estimate difference of total All housing units................. 118,827 117,589 234 332 100 Occupied........................ 105,286 104,035 244 346 89 Owner occupied................ 70,455 69,097 243 343 59 Renter occupied............... 34,831 34,938 197 279 29 Vacant.......................... 13,541 13,554 132 186 11 Year-round vacant............. 10,428 10,514 117 165 9 For rent.................... 3,046 2,978 64 91 3 For sale only............... 1,181 1,242 40 58 1 Rented or sold, awaiting occupancy.......... 856 909 34 49 1 Held off market............. 5,345 5,385 85 120 4 For occasional use........ 1,929 1,868 51 72 2 Temporarily occupied by persons with usual residence elsewhere. 908 920 35 50 1 For other reasons......... 2,508 2,597 59 84 2 Seasonal vacant............... 3,113 3,040 65 92 3