condition	mean	min	max
4 h after light	6.247695	5.46732	7.02807
8 h after light	6.22778	6.1009	6.35466
12 h after light	4.167095	3.91123	4.42296
4 h after dark	3.72011	3.42846	4.01176
8 h after dark	4.964354999999999	4.27668	5.65203
12 h after dark	5.876495	5.34994	6.40305