condition	mean	min	max
4 h after light	15.5584	10.4818	18.4435
8 h after light	15.788336666666666	6.39431	23.6382
12 h after light	20.974666666666668	13.5847	24.8108
4 h after dark	20.880200000000002	14.662	24.4426
8 h after dark	16.797333333333334	12.3871	19.6387
12 h after dark	13.673399999999999	10.0322	18.002