ngram_spam.png
This image displays a line graph plotted on a white background with a light gray grid overlay. The graph tracks a variable over time, showing a distinct pattern often referred to as a "hockey stick" curve.

The horizontal axis at the bottom represents years. It begins at the year 1800 and extends to just past the year 2000. There are vertical tick marks and labels for every twenty-year interval: 1800, 1820, 1840, 1860, 1880, 1900, 1920, 1940, 1960, 1980, and 2000.

The vertical axis on the left represents a percentage value. The scale starts at 0.000000% at the bottom and increases in increments of 0.000020%. The labels read from bottom to top: 0.000000%, 0.000020%, 0.000040%, 0.000060%, 0.000080%, 0.000100%, 0.000120%, 0.000140%, 0.000160%, 0.000180%, and finally 0.000200% at the very top.

A single blue line represents the data. From the year 1800 until approximately 1990, this line remains extremely flat and close to the zero baseline (0.000000%). There are very minor, almost imperceptible fluctuations during this long period, but the value stays effectively at zero relative to the scale of the graph.

Starting just before the year 2000, the blue line begins a sharp, exponential ascent. It curves upward rapidly, crossing the horizontal grid lines for 0.000040%, 0.000060%, and continuing up past 0.000160%. The line peaks near the right edge of the graph, reaching a value just below the 0.000180% mark before slightly dipping at the very end.
This description was generated automatically. Please feel free to ask questions if you have further questions about the nature of the image or its meaning within the presentation.