condition	mean	min	max
0 h after light	19.29255	18.2943	20.2908
4 h after light	21.39065	19.0053	23.776
8 h after light	4.560305	3.09822	6.02239
4 h after dark	5.994190000000001	3.98563	8.00275
8 h after dark	22.59135	18.9847	26.198
12 h after dark	16.5298	16.2108	16.8488