condition	mean	min	max
4 h after light	19.3769	14.9932	23.7606
8 h after light	22.4259	22.3598	22.492
12 h after light	21.50285	21.1379	21.8678
4 h after dark	25.499866666666666	24.5632	26.6811
8 h after dark	28.165233333333333	26.839	28.8929
12 h after dark	21.6427	20.5445	22.8561