condition	mean	min	max
4 h after light	23.04205	20.2287	25.8554
8 h after light	22.4839	20.9016	24.0662
12 h after light	20.29615	17.6416	22.9507
4 h after dark	14.880199999999999	14.6648	15.0956
8 h after dark	13.54645	12.8813	14.2116
12 h after dark	21.53375	19.8197	23.2478