condition	mean	min	max
4 h after light	17.020049999999998	15.2913	18.7488
8 h after light	10.1984	9.2862	11.1106
12 h after light	8.846165	8.56467	9.12766
4 h after dark	10.950166666666666	10.5004	11.731
8 h after dark	16.571233333333332	14.9229	17.9281
12 h after dark	19.8074	18.643	21.1429