condition	mean	min	max
4 h after light	6.821936666666666	6.659089999999999	7.1424199999999995
8 h after light	7.0067900000000005	6.702030000000001	7.20538
12 h after light	6.771796666666667	6.458559999999999	7.0282800000000005
4 h after dark	6.990796666666666	6.745360000000001	7.26014
8 h after dark	6.8964066666666675	6.7561100000000005	7.02148
12 h after dark	6.9209700000000005	6.84335	6.964060000000001