anchor.diff:  "float","est_households","Estimated number of households",,
   "float","pop_u5_males","Population under 5 years of age (male)",,
   "float","pop_u5_females","Population under 5 years of age (female)",,
  -"float","pop_females_reproductive_age","Population of females of reproducitve age",,
  +"float","pop_females_reproductive_age","Population of females of reproductive age",,
   "float","pop_males_school_going_age_6_11","Population of males of school-going age (6-11 years old)",,
   "float","pop_females_school_going_age_6_11","Population of females of school-going age (6-11 years old)",,
   "float","pop_males_sec_school_age_12_17","Population of males of secondary-school-going age (12-17 years old)",,
  
positive.code: "float","pop_ratio_80_84","Population ratio 5-9",,
  "float","pop_ratio_85_plus","Population ratio 5-9",,
  "float","area_sq_km","Area (sq. km)",,
  
negative.code: "boolean","facility_open_247_yn","Facility open 24 hours a day, 7 days a week",,
  "boolean","all_weather_road_yn","Access to an all weather road",,
  "boolean","paid_services_routine_visit","User fees for routine visit",,
  "float","num_med_staff","Number of skilled medical staff ",,"d['num_doctors_fulltime'] + d['num_nurses_fulltime'] + d['num_midwives_fulltime'] + d['num_nursemidwives_fulltime']"
  "float","pop_male","Population (male)",,
  "float","pop_female","Population (female)",,
  