The line graph illustrates the changes in the prices of three different fuel types in Austria: oil, gas, and wood, from 1991 to 1995.
Overall, while the prices of oil and gas showed upward trends, the price of wood declined over the period.
In more detail, the price of gas experienced a constant increase throughout the entire period. From 1991 to 1993 and from 1994 to 1995, the price rose slightly by about 1 dollar per year. Meanwhile, between 1993 and 1994, it experienced a sharper rise of about 3 dollars. The price of gas surpassed the price of oil between 1992 and 1993. In the final period, the two prices reached parity at around 8 dollars.
In contrast, the price of wood showed a significant decreasing trend. From 1991 to 1992, the price dropped considerably from 6 dollars to around 3 dollars. It then remained relatively stable in the following year. Between 1993 and 1994, it increased marginally by 2 dollars before plummeting to a trough of around 1 dollar.
