condition	mean	min	max
0 h after light	4.706445	4.26856	5.14433
4 h after light	6.66746	6.55778	6.77714
8 h after light	7.890295	7.24663	8.53396
4 h after dark	9.463005	7.91031	11.0157
8 h after dark	8.94125	8.72181	9.16069
12 h after dark	6.11702	4.67038	7.56366