condition	mean	min	max
4 h after light	16.183776	15.48349	16.884062
8 h after light	16.039603999999997	15.731001	16.348207
12 h after light	14.8352565	14.647351	15.023162
4 h after dark	17.2234625	16.417913	18.029012
8 h after dark	19.7629115	19.303741	20.222082
12 h after dark	14.563784	14.563784	14.563784