condition	mean	min	max
4 h after light	15.896751000000002	14.271793	17.521709
8 h after light	15.5507925	14.642214	16.459371
12 h after light	13.7261945	12.575871	14.876518
4 h after dark	15.946467	14.935754	16.95718
8 h after dark	17.896938	13.672722	22.121154
12 h after dark	12.813428	12.813428	12.813428