Labels:text | diagram | screenshot | line | plot | font | number OCR: Submarine Sightings 1.4- 1.2 1.0 0.8 4+ KM belowsea level Jan 08 Jan 22 Feb 05 Normal X- and Y-axes Submarine Sightings Feb 05 Jan 22 Jan 08 0.8 1.0 1.2 1.4 KM belowsea level Reversed X- and Y-axes