condition	mean	min	max
4 h after light	6.754923333333334	6.6628	6.876060000000001
8 h after light	7.432896666666666	7.3642199999999995	7.4878
12 h after light	7.823113333333333	7.751689999999999	7.8888
4 h after dark	7.704759999999999	7.67744	7.74182
8 h after dark	7.477690000000001	7.352180000000001	7.666010000000001
12 h after dark	7.17115	7.159	7.18352