condition	mean	min	max
4 h after light	29.58145	24.6864	34.4765
8 h after light	21.5031	21.319	21.6872
12 h after light	35.76935	34.273	37.2657
4 h after dark	53.1097	53.0231	53.1903
8 h after dark	61.5623	60.0056	62.8702
12 h after dark	46.476866666666666	45.085	48.6293