condition	mean	min	max
4 h after light	5.87828	5.81275	5.98264
8 h after light	6.021363333333333	5.9936	6.06608
12 h after light	6.008016666666666	5.84811	6.11822
4 h after dark	6.14062	6.1004	6.1765300000000005
8 h after dark	5.994736666666666	5.86045	6.22012
12 h after dark	6.12236	5.99492	6.24401