condition	mean	min	max
4 h after light	12.07384	7.11822	14.6343
8 h after light	11.098526666666666	3.79248	17.2415
12 h after light	12.19987	7.75841	17.3108
4 h after dark	19.167266666666666	15.1162	21.5445
8 h after dark	18.4465	12.5664	23.0067
12 h after dark	16.8586	14.3334	18.2356