condition	mean	min	max
3 h after light	16.0367	12.6183	18.3024
6 h after light	14.2955	12.4434	16.0258
9 h after light	19.3976	16.7451	23.0453
12 h after light	25.8364	19.0926	32.8286
3 h after dark	22.176266666666667	20.0841	23.6757
6 h after dark	17.5522	15.8991	19.6117
9 h after dark	12.606766666666667	10.4137	15.8039
12 h after dark	9.68974	8.85439	10.9737