condition	mean	min	max
0 h after light	14.50785	13.379	15.6367
4 h after light	21.9277	20.2262	23.6292
8 h after light	21.95	18.6127	25.2873
4 h after dark	19.0901	18.9083	19.2719
8 h after dark	19.18765	18.8866	19.4887
12 h after dark	21.37725	20.0407	22.7138