condition	mean	min	max
4 h after light	15.8326	10.5596	18.5064
8 h after light	10.666926666666667	3.05288	17.9157
12 h after light	12.58126	8.05618	17.3857
4 h after dark	19.825466666666667	17.0188	21.2947
8 h after dark	19.5393	15.0923	22.4725
12 h after dark	20.9229	18.81	22.8336