condition	mean	min	max
4 h after light	7.831715	7.73451	7.92892
8 h after light	6.86616	6.35086	7.38146
12 h after light	7.60135	6.83161	8.37109
4 h after dark	10.36939	9.63247	11.3942
8 h after dark	10.669933333333335	10.0096	11.614
12 h after dark	8.845876666666667	7.20469	10.0752