condition mean min max 4 h after light 4.615353333333333 4.54171 4.69045 8 h after light 4.670046666666667 4.62856 4.7071 12 h after light 4.73475 4.57414 4.90125 4 h after dark 4.71114 4.60844 4.8467400000000005 8 h after dark 4.6049299999999995 4.54001 4.65119 12 h after dark 4.635056666666667 4.594130000000001 4.67647