A used car dealer sold 13 cars during the week at prices of $4,700, $11,400, $5,300, $800, $14,000, $9,700, $3,000, $4,200, $6,800, $8,400, $11,000, $2,800, and $5,500. In preparing a bar graph for grouped data using increments of $4,000 (starting with $0 to $3,999.99), which increment has the most sales?

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