condition	mean	min	max
4 h after light	22.609250000000003	18.6504	26.5681
8 h after light	17.61955	15.8114	19.4277
12 h after light	13.5427	12.919	14.1664
4 h after dark	16.221266666666665	15.806	16.7292
8 h after dark	18.427599999999998	13.5663	24.0397
12 h after dark	24.8435	20.1398	27.4361