condition	mean	min	max
4 h after light	18.023600000000002	17.2657	18.7815
8 h after light	21.003	19.1809	22.8251
12 h after light	16.75435	12.8451	20.6636
4 h after dark	22.603	20.8405	24.3655
8 h after dark	17.2314	14.9504	19.5124
12 h after dark	19.72325	15.876	23.5705