condition	mean	min	max
4 h after light	13.723400000000002	12.4182	15.0286
8 h after light	16.1328	14.8476	17.418
12 h after light	25.4361	24.0445	26.8277
4 h after dark	25.752299999999998	24.666	26.8386
8 h after dark	31.623400000000004	30.9693	32.2775
12 h after dark	22.0201	21.4431	22.5971