condition	mean	min	max
0 h after light	39.8327	38.4107	41.2547
4 h after light	19.83035	16.9382	22.7225
8 h after light	6.698055	6.66583	6.73028
4 h after dark	23.67285	22.5108	24.8349
8 h after dark	28.8273	27.2668	30.3878
12 h after dark	36.7494	31.6182	41.8806