condition	mean	min	max
4 h after light	19.03215	18.7467	19.3176
8 h after light	20.76365	20.6735	20.8538
12 h after light	23.3207	21.8025	24.8389
4 h after dark	29.13795	27.8446	30.4313
8 h after dark	26.17295	25.8536	26.4923
12 h after dark	25.2396	23.9847	26.4945