condition	mean	min	max
4 h after light	7.4964450000000005	6.45861	8.53428
8 h after light	7.509645	7.48147	7.53782
12 h after light	6.73381	6.56497	6.90265
4 h after dark	8.272563333333334	7.38215	8.9405
8 h after dark	7.538666666666667	7.42238	7.74237
12 h after dark	8.63083	7.56648	10.0561