condition	mean	min	max
4 h after light	13.476849999999999	12.8136	14.1401
8 h after light	11.41375	11.2809	11.5466
12 h after light	13.26875	12.6885	13.849
4 h after dark	18.78425	17.9764	19.5921
8 h after dark	15.75325	14.3676	17.1389
12 h after dark	15.40315	14.799	16.0073