condition	mean	min	max
4 h after light	17.4	17.4	17.4
8 h after light	34.25	31.0	37.5
12 h after light	39.75	16.7	62.8
4 h after dark	25.9	24.1	27.7
8 h after dark	14.05	11.8	16.3
12 h after dark	41.9	39.9	43.9