condition	mean	min	max
0 h after light	30.917250000000003	29.7535	32.081
4 h after light	13.3439	13.0522	13.6356
8 h after light	5.962575	5.30813	6.61702
4 h after dark	13.448599999999999	10.2428	16.6544
8 h after dark	16.31505	15.7421	16.888
12 h after dark	23.2663	20.1551	26.3775