ngram_rocket.png
This image displays a two-dimensional line graph plotted on a white background with a light gray grid. The graph tracks a percentage value over time, spanning from the year 1800 to slightly past the year 2000.

The horizontal x-axis at the bottom represents years. It is marked with labels every twenty years: 1800, 1820, 1840, 1860, 1880, 1900, 1920, 1940, 1960, 1980, and 2000.

The vertical y-axis on the left represents a percentage, indicated by the percent symbol (%) next to the numbers. The scale starts at 0.00000% at the bottom and increases in increments of 0.00020%. The labels are: 0.00000%, 0.00020%, 0.00040%, 0.00060%, 0.00080%, 0.00100%, 0.00120%, and 0.00140% at the very top.

A single blue line represents the data.
From the year 1800 until roughly 1935, the blue line remains very low, hovering just above the 0.00000% baseline. During this period, there are minor fluctuations, with small bumps reaching slightly higher around 1815 and 1830, but it generally stays below the 0.00020% mark.

Around the year 1940, the line begins a sharp upward trend. It rises quickly to reach a local peak of approximately 0.00060% around 1945 or 1946. After this small peak, it dips slightly before rising again more steeply.

The graph reaches its absolute highest point just before the year 1960. At this peak, the blue line extends above the 0.00120% grid line, reaching a value of approximately 0.00122%.

Following this main peak in roughly 1960, the line drops sharply again. By the mid-1970s, it has fallen back down to around the 0.00040% level. From 1980 through the end of the graph (past 2000), the line stabilizes and fluctuates slightly around the 0.00040% mark, showing a very slight dip near 1995 before rising again slightly at the far right edge.

The background features a grid of thin gray lines corresponding to the major tick marks on both axes to assist in reading the values. There is no title or legend visible within the image frame.
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.