condition	mean	min	max
0 h after light	7.376095	6.60655	8.14564
4 h after light	3.379905	3.18086	3.57895
8 h after light	3.85867	3.69509	4.02225
4 h after dark	5.5026399999999995	4.70592	6.29936
8 h after dark	4.73837	4.61465	4.86209
12 h after dark	5.24131	4.60997	5.87265