condition	mean	min	max
4 h after light	13.78365	13.4218	14.1455
8 h after light	13.75985	13.6095	13.9102
12 h after light	15.1	13.2286	16.9714
4 h after dark	18.524250000000002	18.1218	18.9267
8 h after dark	20.0678	19.6739	20.4617
12 h after dark	18.5107	18.4092	18.6122