condition	mean	min	max
0 h after light	9.852685000000001	9.51097	10.1944
4 h after light	15.9664	14.8849	17.0479
8 h after light	8.984110000000001	8.69996	9.26826
4 h after dark	12.181365	9.55363	14.8091
8 h after dark	13.276150000000001	13.2164	13.3359
12 h after dark	12.3286	11.6573	12.9999