condition	mean	min	max
4 h after light	16.86495	16.2884	17.4415
8 h after light	8.60931	8.31241	8.90621
12 h after light	2.361835	2.03042	2.69325
4 h after dark	9.81846	8.10152	11.5354
8 h after dark	11.963059999999999	9.69662	14.2295
12 h after dark	11.380875	8.75555	14.0062