Penyelidikan kendiri

Jantina:

  1. female
  2. female
  3. male
  4. female
  5. female
  6. male
  7. male
  8. male
  9. male
  10. female
  11. male
  12. male
  13. female
  14. female
  15. female
  16. male
  17. male
  18. male
  19. male
  20. female
  21. female
  22. female
  23. female
  24. male
  25. female
  26. male
  27. male
  28. male
  29. male
  30. female
  31. female
  32. female
  33. male
  34. male
  35. male
  36. male
  37. male
  38. male