condition	mean	min	max
0 h after light	17.72135	16.5729	18.8698
4 h after light	10.77694	9.17488	12.379
8 h after light	21.5255	21.3134	21.7376
4 h after dark	10.431265	9.39323	11.4693
8 h after dark	5.62117	4.87781	6.36453
12 h after dark	11.046745	4.79789	17.2956