condition	mean	min	max
4 h after light	16.9255	16.1923	17.6587
8 h after light	15.408349999999999	15.0635	15.7532
12 h after light	15.8751	15.7473	16.0029
4 h after dark	17.1779	16.9844	17.3714
8 h after dark	18.923099999999998	18.4702	19.376
12 h after dark	19.22555	19.2112	19.2399