condition	mean	min	max
4 h after light	15.783999999999999	14.3969	17.1711
8 h after light	15.136849999999999	15.096	15.1777
12 h after light	19.90465	18.222	21.5873
4 h after dark	21.346049999999998	21.2156	21.4765
8 h after dark	18.3009	17.6682	18.9336
12 h after dark	18.3077	18.1278	18.4876