condition	mean	min	max
4 h after light	19.5639	17.7724	21.3554
8 h after light	13.6896	13.5492	13.83
12 h after light	12.817	12.2746	13.3594
4 h after dark	15.3034	14.3903	16.0255
8 h after dark	19.017866666666666	17.8261	20.211
12 h after dark	21.047433333333334	19.6558	23.2881