condition	mean	min	max
4 h after light	7.797293333333333	7.10185	8.16235
8 h after light	7.7196966666666675	7.316110000000001	8.01632
12 h after light	8.02463	7.518489999999999	8.31905
4 h after dark	7.62585	7.081860000000001	7.955019999999999
8 h after dark	7.895723333333334	7.282760000000001	8.42192
12 h after dark	7.9020133333333336	7.22956	8.24301