condition	mean	min	max
0 h after light	15.48965	12.8585	18.1208
4 h after light	15.913	14.5162	17.3098
8 h after light	14.36555	12.2973	16.4338
4 h after dark	22.1172	15.5723	28.6621
8 h after dark	25.02385	23.052	26.9957
12 h after dark	19.23535	16.2271	22.2436