condition	mean	min	max
0 h after light	20.00785	19.7419	20.2738
4 h after light	12.7187	10.4138	15.0236
8 h after light	7.375235	6.45217	8.2983
4 h after dark	5.58436	3.68989	7.47883
8 h after dark	19.355800000000002	17.9425	20.7691
12 h after dark	18.46875	16.6201	20.3174