condition	mean	min	max
0 h after light	16.2984	16.2343	16.3625
4 h after light	14.5687	12.6181	16.5193
8 h after light	17.0955	14.6768	19.5142
4 h after dark	19.9781	13.9595	25.9967
8 h after dark	21.5156	21.4646	21.5666
12 h after dark	15.236	12.5511	17.9209