condition	mean	min	max
4 h after light	18.1877	17.9672	18.4082
8 h after light	13.8064	13.1859	14.4269
12 h after light	11.56845	11.2911	11.8458
4 h after dark	13.77725	13.1425	14.412
8 h after dark	16.600099999999998	16.5916	16.6086
12 h after dark	19.4418	18.7591	20.1245