condition	mean	min	max
4 h after light	18.888199999999998	18.36	19.4164
8 h after light	19.782899999999998	19.5171	20.0487
12 h after light	20.09175	19.6687	20.5148
4 h after dark	30.582949999999997	28.4397	32.7262
8 h after dark	25.86205	25.3275	26.3966
12 h after dark	25.2972	23.8119	26.7825