condition	mean	min	max
4 h after light	6.8	6.8	6.8
8 h after light	8.85	5.8	11.9
12 h after light	22.75	9.2	36.3
4 h after dark	17.35	8.3	26.4
8 h after dark	47.7	28.7	66.7
12 h after dark	8.0	7.9	8.1