condition	mean	min	max
4 h after light	19.694032	17.527346	21.860718
8 h after light	21.2340755	19.203609	23.264542
12 h after light	17.981902499999997	17.7202	18.243605
4 h after dark	30.839814999999998	17.583833	44.095797
8 h after dark	17.062293	16.959676	17.16491
12 h after dark	19.884568	19.884568	19.884568