condition	mean	min	max
4 h after light	15.522461	13.720212	17.32471
8 h after light	17.2154285	16.457822	17.973035
12 h after light	15.964703499999999	15.882757	16.04665
4 h after dark	24.130434	17.543318	30.71755
8 h after dark	19.810163	15.920633	23.699693
12 h after dark	15.202475	15.202475	15.202475