condition	mean	min	max
4 h after light	4.142546666666667	4.05035	4.24453
8 h after light	4.18536	4.101430000000001	4.28765
12 h after light	4.139083333333334	4.10422	4.20073
4 h after dark	4.141006666666667	4.10979	4.19899
8 h after dark	4.11342	4.05037	4.16038
12 h after dark	4.09615	4.01633	4.1491