condition	mean	min	max
4 h after light	17.198999999999998	15.8413	18.5567
8 h after light	16.34555	16.0425	16.6486
12 h after light	30.5453	28.9827	32.1079
4 h after dark	86.40174999999999	83.6805	89.123
8 h after dark	62.959900000000005	62.5897	63.3301
12 h after dark	38.676050000000004	35.565	41.7871