condition	mean	min	max
4 h after light	8.913630000000001	8.85879	8.96847
8 h after light	8.33885	7.99397	8.68373
12 h after light	8.592385	8.24356	8.94121
4 h after dark	9.038845	8.62721	9.45048
8 h after dark	8.828990000000001	8.68736	8.97062
12 h after dark	9.293585	9.22699	9.36018