condition	mean	min	max
4 h after light	21.293171	20.59826	21.988082
8 h after light	19.8525735	19.01071	20.694437
12 h after light	18.2008975	15.768685	20.63311
4 h after dark	21.4333575	20.694437	22.172278
8 h after dark	20.162323	19.630209	20.694437
12 h after dark	21.963689	21.963689	21.963689