condition	mean	min	max
4 h after light	60.182026	46.989588	73.374464
8 h after light	15.136333	14.644365	15.628301
12 h after light	18.16391	18.146673	18.181147
4 h after dark	13.0216605	12.803607	13.239714
8 h after dark	13.150872	10.686364	15.61538
12 h after dark	16.930486	16.930486	16.930486