condition	mean	min	max
4 h after light	11.39273	8.15586	14.6296
8 h after light	9.713175	8.02555	11.4008
12 h after light	8.97664	6.00288	11.9504
4 h after dark	19.639	18.4784	21.3697
8 h after dark	14.856133333333334	12.1805	17.5957
12 h after dark	17.1681	14.3219	22.6033