condition mean min max 4 h after light 130.290517 121.393626 139.187408 8 h after light 139.627571 139.596384 139.658758 12 h after light 146.8653595 139.932781 153.797938 4 h after dark 169.161091 140.462826 197.859356 8 h after dark 156.196533 135.616672 176.776394 12 h after dark 137.124621 137.124621 137.124621