condition mean min max 4 h after light 3.1816950000000004 3.02137 3.34202 8 h after light 3.67341 3.58612 3.7607 12 h after light 4.232559999999999 4.07859 4.38653 4 h after dark 4.2853200000000005 4.20286 4.36778 8 h after dark 4.292425 3.89481 4.69004 12 h after dark 4.356865 4.15132 4.56241