condition	mean	min	max
4 h after light	7.173475	6.66748	7.67947
8 h after light	17.5269	12.4994	22.5544
12 h after light	31.586949999999998	28.9788	34.1951
4 h after dark	39.7178	39.5847	39.8509
8 h after dark	23.84225	18.145	29.5395
12 h after dark	22.4396	22.1184	22.7608