condition mean min max 4 h after light 5.3612633333333335 5.22264 5.586130000000001 8 h after light 5.3331100000000005 5.224480000000001 5.53326 12 h after light 5.2370833333333335 5.170640000000001 5.30394 4 h after dark 5.270686666666667 5.22569 5.293880000000001 8 h after dark 5.2520066666666665 5.11116 5.3783900000000004 12 h after dark 5.30136 5.1852599999999995 5.48434