condition	mean	min	max
4 h after light	15.6496	15.2641	16.0351
8 h after light	16.21855	15.0443	17.3928
12 h after light	11.110949999999999	10.0181	12.2038
4 h after dark	16.771833333333333	14.1749	18.6105
8 h after dark	19.951433333333334	15.3656	23.5007
12 h after dark	14.935533333333334	10.8399	18.0589