condition	mean	min	max
4 h after light	8.071416666666666	7.9051	8.22916
8 h after light	8.186973333333333	8.12285	8.2221
12 h after light	8.36256	8.25891	8.48057
4 h after dark	8.27785	8.173910000000001	8.48015
8 h after dark	8.175073333333334	8.11691	8.26499
12 h after dark	8.10595	8.04873	8.16393