Table 10. Percent Distribution by Type of Unit for the United States and for Inside and Outside MAs: Third Quarter 1999 and 1998 (Percent distribution may not add to total, due to rounding) Third quarter 1999 Type of housing unit United Inside Outside States MAs MAs All housing units......................... 100 100 100 Year-round vacant..................... 9.2 8.4 12.3 For rent............................ 2.6 2.7 2.4 For sale only....................... 0.9 0.8 1.4 Rented or sold, awaiting occupancy.. 0.9 0.9 0.9 Held off market..................... 4.7 3.9 7.6 For occasional use................ 1.6 1.2 3.3 Temporarily occupied by persons with usual residence elsewhere.... 0.8 0.8 0.8 For other reasons................. 2.2 1.9 3.6 Seasonal vacant....................... 2.9 1.8 6.8 Occupied.............................. 87.9 90.0 80.9 Third quarter 1998 Type of housing unit United Inside Outside States MAs MAs All housing units......................... 100 100 100 Year-round vacant..................... 9.0 8.3 11.5 For rent............................ 2.7 2.8 2.2 For sale only....................... 1.0 0.9 1.4 Rented or sold, awaiting occupancy.. 0.8 0.8 0.7 Held off market..................... 4.4 3.7 7.1 For occasional use................ 1.5 1.1 2.8 Temporarily occupied by persons with usual residence elsewhere.... 0.7 0.7 0.8 For other reasons................. 2.2 1.8 3.6 Seasonal vacant....................... 2.9 1.7 7.2 Occupied.............................. 88.2 90.0 81.3