A bar chart displays U.S. violent crime rates per 100,000 people from 1975 to 2015, showing a rise peaking around 1991 followed by a dramatic decline through 2015. The visualization uses the vega-lite-api to encode year as an ordinal field and violent crime rate as a quantitative field, rendered as bars. Data is loaded via d3.csv from a gist-hosted CSV file, with custom axis styling configured to improve readability.