Statistical Analysis
Pattern analysis across 10,807 declassified case files
📁
10,807
Total Cases
📷
404
With Photos
📅
25
Years Covered
🌍
71
Countries Represented
▶ Cases by Year
▶ Cases by State (Top 20)
▶ Cases Outside US by Country (Top 20)
The United States accounts for 9,123 of 10,807 cases (84%)
▶ Witness Count Distribution
▶ Air Force Conclusions
Of 979 cases with a recorded conclusion (9% of archive)
▶ Sightings by Month
Summer peaks — July and August account for 22% of all reports
▶ Largest Mass Sightings
Cases with 100 or more recorded witnesses
| Witnesses | Date | Location | |
|---|---|---|---|
| 6,000 | 1952-09 | Casablanca, Moroccan, Morocco | View → |
| 500 | 1958-11 | Brasilia, Brazil | View → |
| 300 | 1949-08 | Cincinnati, Ohio, USA | View → |
| 300 | 1954-07 | Atlantic City, New Jersey, USA | View → |
| 300 | 1966-08 | Fort Smith, Arkansas, USA | View → |
| 212 | 1949-04 | USA | View → |
| 200 | 1952-05 | Phoenix, Arizona, USA | View → |
| 150 | 1949-07 | Longview, Washington, USA | View → |
| 150 | 1952-01 | Philadelphia, Pennsylvania, US | View → |
| 150 | 1954-12 | Porto Alegre, Brazil | View → |