condition	mean	min	max
4 h after light	8.86859	8.77995	8.935030000000001
8 h after light	8.641173333333334	8.44556	8.860660000000001
12 h after light	8.769816666666667	8.69159	8.8222
4 h after dark	8.923783333333333	8.84281	9.06064
8 h after dark	8.954369999999999	8.88556	9.0627
12 h after dark	9.270256666666667	9.167710000000001	9.35218