condition	mean	min	max
4 h after light	23.238733	22.652946	23.82452
8 h after light	19.522589	18.318279	20.726899
12 h after light	16.731979000000003	14.996918	18.46704
4 h after dark	18.1908465	17.82528	18.556413
8 h after dark	17.551387	16.635734	18.46704
12 h after dark	15.782965	15.782965	15.782965