condition	mean	min	max
0 h after light	8.28941	6.98056	9.59826
4 h after light	12.4926	11.8756	13.1096
8 h after light	27.77465	25.5935	29.9558
4 h after dark	23.4969	21.1837	25.8101
8 h after dark	19.01415	18.4818	19.5465
12 h after dark	12.35265	11.3453	13.36