condition	mean	min	max
0 h after light	11.45	11.3758	11.5242
4 h after light	9.453375000000001	9.37325	9.5335
8 h after light	8.498465	8.02255	8.97438
4 h after dark	13.7595	12.7155	14.8035
8 h after dark	18.174950000000003	17.6351	18.7148
12 h after dark	13.502299999999998	10.5816	16.423