condition	mean	min	max
4 h after light	7.133255	6.5325	7.73401
8 h after light	7.279865	6.9652	7.59453
12 h after light	6.228	5.66059	6.79541
4 h after dark	7.28954	6.70156	7.87752
8 h after dark	7.14937	6.96724	7.3315
12 h after dark	6.712870000000001	6.49104	6.9347