condition	mean	min	max
4 h after light	6.55602	6.24164	6.949439999999999
8 h after light	7.647333333333334	7.51978	7.888160000000001
12 h after light	7.2835	6.858339999999999	7.53815
4 h after dark	7.894583333333333	7.73738	8.111889999999999
8 h after dark	7.689153333333333	7.38585	7.85504
12 h after dark	7.8189633333333335	7.346889999999999	8.408610000000001