condition	mean	min	max
0 h after light	20.0076	18.6324	21.3828
4 h after light	13.4163	12.9737	13.8589
8 h after light	13.63475	12.6863	14.5832
4 h after dark	17.2742	16.5301	18.0183
8 h after dark	14.010850000000001	13.006	15.0157
12 h after dark	16.45405	14.5234	18.3847