This horizontal bar chart displays average response times for various API endpoints, with a linear x-axis and categorical y-axis. It uses a D3 v5 scaleBand for bars and scaleLinear for the x-axis, with custom tick formatting via `format('~s')` that replaces "G" with "B" for large values. A left axis without domain lines and horizontal gridlines from negative tick sizes emphasize the bar lengths. The data comes from a CSV file containing endpoint names and their average response times in milliseconds.