condition	mean	min	max
4 h after light	8.245273333333333	8.1472	8.417769999999999
8 h after light	7.847130000000001	7.718710000000001	7.9516800000000005
12 h after light	7.848503333333333	7.78176	7.94641
4 h after dark	7.61184	7.453139999999999	7.8034
8 h after dark	7.653013333333334	7.50933	7.76235
12 h after dark	7.6835933333333335	7.548369999999999	7.82636