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 | Moderate | High | Very High | Desert - Dry Regions | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.86% | |||||||||||
| 27.5 | 4.58% | 2.91% | 9.51% | 4.95% | |||||||
| 2.52% | 7.35% | 30.8% | 59.1% | ||||||||
| 2.31% | 30.5% | ||||||||||
| 5.18% | 5.94% | 1.92% | 1.05% | ||||||||
| 1 | 16.5% | 11.9% | 10.8% | ||||||||
| 20 | 11.3% | 5.72% | 4.10% | 12.2% | |||||||
| 1.22% | 5.24% | 92.9% | |||||||||
| 13.5 | 5.96% | 1.46% | 11.7% | 9.60% | |||||||
| 19.6% | 5.24% | 9.49% | 20.7% | ||||||||
| 19.0% | 2.57% | 2.44% | |||||||||
| 8.30% | 16.0% | 15.2% | 72.0% | ||||||||
| 21.4% | 16.2% | 6.96% | 47.0% | ||||||||
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