condition	mean	min	max
4 h after light	3.8379700000000003	3.82305	3.8554800000000005
8 h after light	4.00751	3.74906	4.1660699999999995
12 h after light	3.790983333333333	3.7240300000000004	3.8636199999999996
4 h after dark	3.9120566666666665	3.88343	3.94555
8 h after dark	3.7819900000000004	3.72739	3.8711
12 h after dark	3.8473333333333333	3.76251	3.89815