condition	mean	min	max
4 h after light	21.69595	19.616	23.7759
8 h after light	13.937149999999999	13.4248	14.4495
12 h after light	11.5394	10.1972	12.8816
4 h after dark	11.188966666666667	10.9199	11.4459
8 h after dark	15.288866666666667	14.3975	15.7827
12 h after dark	17.9038	16.8914	18.61