TThe line graph illustrates the average monthly expenses of low-, middle-, and high-income families in the USA between 2000 and 2020.
Overall, it is clear that expenses increased for all three groups over the period. High-income families consistently spent the most, while low-income families showed the most significant growth, especially after 2010.
Looking at the details, high-income households started at approximately $600 in 2000 and rose steadily to around $700 by 2010. Their spending then remained stable until 2015 before increasing slightly to about $720 in 2020.
In contrast, middle-income families spent around $400 in 2000, which increased to $450 in 2005 and stayed relatively stable until 2010. However, their expenses dropped to $400 in 2015 before rising again to $500 by 2020.
Low-income families had the lowest expenses at the beginning, at about $200 in 2000. This figure remained unchanged in 2005 and rose slightly to $250 in 2010. After that, there was a sharp increase to $400 in 2015, followed by a further rise to approximately $450 in 2020.
