POPULATION

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Across
  1. 4. — A beginning, statistically speaking (5)
  2. 5. — Where numbers press harder than space allows (9)
  3. 6. — Potential futures per woman, on average (9)
  4. 7. — The final exit, duly recorded (5)
  5. 9. — Everyone counts here—literally (10)
  6. 13. — A balance that rarely stands still (11)
  7. 15. — Where space is scarce and neighbors aren’t (5)
  8. 16. PYRAMID — The shape of ages, drawn without faces (3,7)
  9. 19. — Not the city, yet still home (11)
  10. 20. — A crowd, but counted carefully (8)
Down
  1. 1. — When staying put becomes a memory (9)
  2. 2. — Coming in, but not for a visit (11)
  3. 3. — More today than yesterday (6)
  4. 8. — Leaving, not just for the weekend (10)
  5. 10. — Neither young nor old alone, but both together (3)
  6. 11. — When leaving home becomes the statistic (9)
  7. 12. — Numbers about us, but not just numbers (10)
  8. 14. — The middle disappears as extremes remain (6)
  9. 17. — Packed tightly, though not necessarily together (7)
  10. 18. — Where distance is plentiful and people aren’t (5)