condition	mean	min	max
4 h after light	10.029620000000001	9.64484	10.4144
8 h after light	16.9848	16.4536	17.516
12 h after light	19.6704	19.0646	20.2762
4 h after dark	20.1756	18.884	21.4672
8 h after dark	13.33385	12.8255	13.8422
12 h after dark	15.174	12.7209	17.6271