condition	mean	min	max
4 h after light	9.65682	9.2402	10.022269999999999
8 h after light	9.156663333333332	8.73203	9.432839999999999
12 h after light	8.916723333333334	8.58009	9.12177
4 h after dark	8.99375	8.58381	9.32745
8 h after dark	9.075133333333333	8.67416	9.30829
12 h after dark	8.09868	7.663589999999999	8.55659