Figure 3
A line graph showing prices and sales volume over time. The x axis represents the years from 1836 to 1853. The left y axis represents the price in reales de vellon per quintal, ranging from 0 to 4. The right y axis represents the total sales in reales de vellon, ranging from 0 to 1,000,000. The graph includes three data lines: sales volume, first grade, and lower grade. The sales volume is represented by gray bars, the first grade by a solid black line, and the lower grade by a dashed black line. The sales volume fluctuates over the years, with notable peaks around 1837, 1847, and 1849. The first grade price starts at around 2.5 reales de vellon per quintal in 1836, rises to about 3.5 in 1848, and then slightly decreases to around 3 in 1853. The lower grade price starts at around 2 reales de vellon per quintal in 1836, drops to about 1.25 in 1840, and then gradually increases to around 1.75 in 1853. All values are approximated.Prices according to the grade of the product, 1836–1853 (reales de vellón). Source: Own elaboration