condition	mean	min	max
4 h after light	6.5240133333333326	6.13641	6.75754
8 h after light	6.92057	6.56314	7.174169999999999
12 h after light	7.544673333333333	6.852939999999999	7.95246
4 h after dark	6.8940399999999995	6.3390699999999995	7.34185
8 h after dark	6.707949999999999	6.38165	6.95678
12 h after dark	6.57601	6.36702	6.82101