condition	mean	min	max
4 h after light	6.5868899999999995	6.47985	6.761019999999999
8 h after light	6.742290000000001	6.48538	7.06486
12 h after light	6.67449	6.59425	6.8198
4 h after dark	7.231146666666667	6.83264	7.7159
8 h after dark	6.994026666666667	6.790430000000001	7.26352
12 h after dark	6.80149	6.629639999999999	6.920730000000001