Based on the data from SUFOI (Skandinavisk UFO Information), most sightings are short-lived events, often witnessed by just one or two people. The sightings are more frequent in the third quarter of the year and often occur around late evening.
Key Statistics
Total sightings: 3,236
Month with most sightings: November (354 sightings)
Year with most sightings: 2008 (63 sightings)
Patterns
Duration: Mean duration is 5.75 minutes
5 min: 140 occurrences
10 min: 127 occurrences
1 min: 120 occurrences
2 min: 113 occurrences
Witnesses: Most common are 1 (1,487) and 2 (892)
Time of Year: Third quarter has highest (1,049), followed by second quarter (769)