condition	mean	min	max
4 h after light	57.73095	54.2393	61.2226
8 h after light	30.44265	29.4207	31.4646
12 h after light	34.6444	34.3396	34.9492
4 h after dark	49.0914	47.3335	50.8493
8 h after dark	64.65205	63.3365	65.9676
12 h after dark	73.7121	73.4347	73.9895