condition	mean	min	max
4 h after light	0.0	0.0	0.0
8 h after light	10.55123	4.20546	16.897
12 h after light	10.2724	0.0	20.5448
4 h after dark	27.00058	9.10836	44.8928
8 h after dark	23.5228	22.2989	24.7467
12 h after dark	5.94435	4.42965	7.45905