condition	mean	min	max
4 h after light	16.01815	12.8896	19.1467
8 h after light	13.2849	13.225	13.3448
12 h after light	12.56715	12.163	12.9713
4 h after dark	19.1674	16.9234	20.5984
8 h after dark	19.679466666666666	18.0756	21.4668
12 h after dark	19.344933333333334	17.8768	20.5049