condition	mean	min	max
0 h after light	7.562390000000001	6.94057	8.18421
4 h after light	4.74365	4.6164	4.8709
8 h after light	3.864405	3.53254	4.19627
4 h after dark	5.141645	4.52068	5.76261
8 h after dark	6.1483	5.83874	6.45786
12 h after dark	6.1858450000000005	5.34417	7.02752