condition	mean	min	max
0 h after light	21.72155	20.5512	22.8919
4 h after light	6.944865	6.51029	7.37944
8 h after light	5.144270000000001	4.62431	5.66423
4 h after dark	18.286499999999997	17.0449	19.5281
8 h after dark	18.74175	17.3162	20.1673
12 h after dark	17.4516	16.3801	18.5231