condition	mean	min	max
4 h after light	15.779564	13.836354	17.722774
8 h after light	16.579904	15.925235	17.234573
12 h after light	19.149921499999998	17.020144	21.279699
4 h after dark	15.1116925	14.920048	15.303337
8 h after dark	20.323552499999998	19.963517	20.683588
12 h after dark	82.258419	82.258419	82.258419