1981 1987 1991 1993 Total Units 1,241,565 1,116,103 1,134,995 1,114,895 Total Occupied 1,214,088 1,090,734 1,095,486 1,080,824 Controlled 285,733 155,361 124,411 101,798 Stabilized 928,355 935,373 971,075 979,026 Pre 1947 615,497 662,742 706,794 707,878 Post 1947 312,858 272,631 264,281 271,148 Total Vacant for rent 27,477 25,369 39,509 34,071 Stabilized 27,477 25,369 39,509 34,071 Pre 1947 19,693 18,202 33,420 27,534 Post 1947 7,784 7,167 6,089 6,537 Source: 1981, 1987, 1991 & 1993 Housing & Vacancy Surveys.