condition	mean	min	max
4 h after light	8.393133333333333	8.29058	8.51196
8 h after light	8.60313	8.46438	8.74185
12 h after light	9.24392	9.0354	9.36328
4 h after dark	9.241496666666666	9.09198	9.3448
8 h after dark	8.593720000000001	8.5571	8.64628
12 h after dark	8.22057	7.885669999999999	8.54113