TABLE (MATRIX) SECTION - from Summary File One (SF1) Documentation of US Census for 2000
Table                                                                 Table
(matrix)                           Data dictionary  Field  Data    (matrix)
number    Table (matrix)           reference name   size   type coordinates

P1. PERSONS(1) [1]
    Universe:  Persons
    Total                                  P0010001    9      N          1

P2. FAMILIES(1) [1]
    Universe:  Families
    Total                                  P0020001    9      N          1

P3. HOUSEHOLDS(1) [1]
    Universe:  Households
    Total                                  P0030001    9      N          1

P4. URBAN AND RURAL(4) [4]
    Universe:  Persons
    Urban:
        Inside urbanized area              P0040001    9      N           1
        Outside urbanized area             P0040002    9      N           2
        Rural                              P0040003    9      N           3
        Not Defined for this file          P0040004    9      N           4

P5. SEX (2) [2]
    Universe:  Persons
     Male                                  P0050001    9      N           1
     Female                                P0050002    9      N           2