condition	mean	min	max
4 h after light	5.492235	5.41307	5.5714
8 h after light	7.728985	7.52325	7.93472
12 h after light	11.292905000000001	7.76971	14.8161
4 h after dark	15.802	12.8316	18.7724
8 h after dark	21.390700000000002	20.3445	22.4369
12 h after dark	12.786950000000001	10.8959	14.678