condition	mean	min	max
4 h after light	29.46045	28.5729	30.348
8 h after light	19.05295	16.0796	22.0263
12 h after light	15.079450000000001	13.0101	17.1488
4 h after dark	20.9379	18.8418	23.0717
8 h after dark	23.8626	22.4535	24.7585
12 h after dark	26.219866666666668	24.9394	28.2463