condition	mean	min	max
4 h after light	38.7072615	24.862732	52.551791
8 h after light	19.427095	17.311923	21.542267
12 h after light	19.513528	15.551523	23.475533
4 h after dark	20.574055	18.779552	22.368558
8 h after dark	17.2555775	16.22636	18.284795
12 h after dark	19.045454	19.045454	19.045454