condition	mean	min	max
4 h after light	18.30315	17.4303	19.176
8 h after light	14.129100000000001	13.4517	14.8065
12 h after light	16.39595	16.2061	16.5858
4 h after dark	21.8756	20.5796	23.1503
8 h after dark	23.943966666666668	22.7043	25.0877
12 h after dark	21.786666666666665	20.3554	22.5054