condition	mean	min	max
4 h after light	15.6905	13.1481	18.2329
8 h after light	10.6692	10.0646	11.2738
12 h after light	11.981349999999999	11.9575	12.0052
4 h after dark	20.552599999999998	19.6957	22.2338
8 h after dark	28.019033333333333	27.672	28.3742
12 h after dark	21.285466666666668	20.0207	22.9454