condition	mean	min	max
4 h after light	8.13659	7.79435	8.41927
8 h after light	8.323436666666666	7.820110000000001	8.586219999999999
12 h after light	8.41252	8.00244	8.665560000000001
4 h after dark	8.12183	7.531680000000001	8.465689999999999
8 h after dark	8.093603333333334	7.604089999999999	8.548060000000001
12 h after dark	7.212236666666667	6.48921	7.87144