condition	mean	min	max
4 h after light	29.22825	26.9074	31.5491
8 h after light	24.64065	24.0099	25.2714
12 h after light	21.73625	20.167	23.3055
4 h after dark	34.25033333333333	32.2284	35.4449
8 h after dark	43.8196	41.578	45.0196
12 h after dark	34.354	32.1073	36.5881