This interactive bar chart shows the number of people employed in New York City across various occupations for each year from 2010 to 2019. Users click year buttons to update the visualization, which animates bar widths and the y-axis with smooth transitions. The chart uses D3 v6 APIs including `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom`, along with `transition` methods for the animation. Data is loaded from CSV files containing occupation and employment figures per year.