A world map shows nitrate mining locations marked by orange circles with "N." Key areas include the U S, Mexico, Chile, and Spain. Major clusters are in the U S (western states), Mexico, and northern Chile's Atacama Desert.
Nitrate Mines | Class | Rank | Metric tons per person | Class | Rank | Children per woman | 0-5 | 5-10 | 10-20 | 20-40 | 40-80 | Over 80 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 14.3% | 62.6% | 49.7% | 15.1% | ||||||||||
| 27.5 | 58.2% | 27.0% | |||||||||||
| 63.6% | 25.6% | 10.2% | 6.14% | ||||||||||
| 76.6% | 13.0% | 13.4% | 4.94% | ||||||||||
| 42.4% | 48.3% | 7.41% | 41.0% | ||||||||||
| 1 | 46.7% | 47.0% | 29.8% | 6.13% | |||||||||
| 20 | 19.2% | 11.5% | 12.8% | 34.2% | 49.9% | 2.53% | |||||||
| 48.0% | 33.2% | 15.1% | 7.51% | 52.6% | |||||||||
| 13.5 | 39.1% | 29.0% | 17.7% | 9.83% | 2.01% | ||||||||
| 55.8% | 28.3% | 15.2% | 3.19% | 72.7% | |||||||||
| 32.2% | 44.5% | 10.6% | 53.6% | 4.88% | |||||||||
| 77.1% | 16.1% | 18.1% | 7.06% | ||||||||||
| 61.2% | 21.7% | 25.0% | 38.3% | 37.3% | |||||||||
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