condition	mean	min	max
4 h after light	15.025642999999999	14.876078	15.175208
8 h after light	13.771278	13.027447	14.515109
12 h after light	13.562609	12.923662	14.201556
4 h after dark	15.783374	14.876078	16.69067
8 h after dark	15.703909	14.391016	17.016802
12 h after dark	15.537574	15.537574	15.537574