condition	mean	min	max
0 h after light	6.31963	5.06111	7.57815
4 h after light	8.841875	7.72157	9.96218
8 h after light	20.31815	17.494	23.1423
4 h after dark	27.35365	22.3281	32.3792
8 h after dark	12.49165	12.4392	12.5441
12 h after dark	16.177500000000002	12.6133	19.7417