condition	mean	min	max
4 h after light	17.666356999999998	16.951983	18.380731
8 h after light	18.893496	18.859518	18.927474
12 h after light	20.111896	19.973052	20.25074
4 h after dark	21.5139205	20.677527	22.350314
8 h after dark	24.7008075	23.8272	25.574415
12 h after dark	20.152203	20.152203	20.152203