condition	mean	min	max
4 h after light	22852.0	22852.0	22852.0
8 h after light	23771.1	21799.6	25742.6
12 h after light	21085.9	20923.6	21248.2
4 h after dark	15096.95	9395.9	20798.0
8 h after dark	13029.55	10998.7	15060.4
12 h after dark	14821.15	14744.5	14897.8