condition mean min max 0 h after light 189.544 187.455 191.633 4 h after light 129.583 110.748 148.418 8 h after light 238.188 225.683 250.693 4 h after dark 284.047 258.959 309.135 8 h after dark 233.447 228.868 238.026 12 h after dark 167.204 166.993 167.415