condition	mean	min	max
0 h after light	6.463145	6.30708	6.61921
4 h after light	4.822675	4.40473	5.24062
8 h after light	5.89487	5.84699	5.94275
4 h after dark	6.779120000000001	6.73707	6.82117
8 h after dark	6.795285	6.65538	6.93519
12 h after dark	6.38447	5.75799	7.01095