condition	mean	min	max
0 h after light	22.3063	21.481	23.1316
4 h after light	27.0137	23.8696	30.1578
8 h after light	21.0441	19.9369	22.1513
4 h after dark	16.87135	16.0118	17.7309
8 h after dark	16.09475	14.8162	17.3733
12 h after dark	26.744	26.6929	26.7951