anchor.diff:  05125,"Saline, AR",C
   05127,"Scott, AR",C
   05129,"Searcy, AR",C
  -0512900,"Batesville, AR",M
   05131,"Sebastian, AR",C
   05133,"Sevier, AR",C
   05135,"Sharp, AR",C
   05137,"Stone, AR",C
   05139,"Union, AR",C
   05141,"Van Buren, AR",C
  -0514180,"Blytheville, AR",M
   05143,"Washington, AR",C
   05145,"White, AR",C
   05147,"Woodruff, AR",C
   05149,"Yell, AR",C
  +0511660,"Arkadelphia, AR",M
  +0512900,"Batesville, AR",M
  +0514180,"Blytheville, AR",M
   0515780,"Camden, AR",M
   0520980,"El Dorado, AR",M
   0522220,"Fayetteville-Springdale-Rogers, AR-MO (AR part)",M
  
positive.code: 05111,"Poinsett, AR",C
  05113,"Polk, AR",C
  05115,"Pope, AR",C
  0511660,"Arkadelphia, AR",M
  05117,"Prairie, AR",C
  05119,"Pulaski, AR",C
  05121,"Randolph, AR",C
  
negative.code: 0542620,"Searcy, AR",M
  0545500,"Texarkana, TX-AR (AR part)",M
  0599999,"Nonmetropolitan, nonmicropolitan",M
  05000001,"01 Central WIB",W
  05000002,"02 Eastern WIB",W
  05000003,"03 Little Rock WIB",W
  05000004,"04 North Central WIB",W
  05000005,"05 Northeast WIB",W
  05000006,"06 Northwest WIB",W
  05000007,"07 Southeast WIB",W
  05000008,"08 Southwest WIB",W
  05000009,"09 West Central WIB",W
  05000010,"10 Western WIB",W
  