condition	mean	min	max
4 h after light	6.993503333333333	6.93222	7.04045
8 h after light	7.09495	6.956930000000001	7.20534
12 h after light	7.132936666666667	7.04443	7.2018699999999995
4 h after dark	7.408343333333333	7.158689999999999	7.61706
8 h after dark	7.408259999999999	7.255719999999999	7.54367
12 h after dark	7.646053333333334	7.4196100000000005	7.859389999999999