condition	mean	min	max
4 h after light	4.700335	4.31021	5.09046
8 h after light	4.06956	3.90433	4.23479
12 h after light	4.565765	4.36545	4.76608
4 h after dark	9.00205	8.92267	9.08143
8 h after dark	7.67412	7.46446	7.88378
12 h after dark	6.703865	6.48604	6.92169