not less than nor more than
4,300 4,400
4,500 4,600
6,125 6,225
7,650 7,700
9,350 9,400
13,565 13,600
14,925 14,940
15,675 15,775
19,500 19,575
26,400 26,500
31,900 32,000
32,600 32,700
38,300 38,315
47,575 47,615
143,900 144,000
according to the 1980 federal census or any subsequent federal census.