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An interactive choropleth map displays property crime rates across U.S. states from 2009 to 2019, with dropdown menus to select the year and crime type (property crime, burglary, larceny, or motor vehicle theft). The map uses `d3.geoAlbersUsa` projection and `d3.geoPath` to render state boundaries from a TopoJSON file. Crime values are mapped to a red color scale using `d3.scaleThreshold`, with a legend generated via `d3.legendColor`. Hovering over a state reveals a tooltip with details, and the visualization updates dynamically through SVG transitions.