condition	mean	min	max
4 h after light	16.729118999999997	15.207607	18.250631
8 h after light	18.214180499999998	16.851249	19.577112
12 h after light	17.480285	16.597163	18.363407
4 h after dark	19.733680999999997	17.767718	21.699644
8 h after dark	14.848572	14.675154	15.02199
12 h after dark	14.869121	14.869121	14.869121