The bar chart illustrates the percentages of four types of household waste that were recycled in a city between 1992 and 2002.
Overall, it is clear that the proportion of all waste materials recycled increased over the period. Glass and paper showed the highest recycling rates by the end of the timeframe, while plastic remained the least recycled material.
In 1992, recycling levels were relatively low. Glass and paper were recycled at similar rates of around 14%, whereas cans recorded a higher figure of approximately 20%. Plastic was the least recycled item, accounting for about 10%.
By 1997, recycling rates had risen noticeably. Paper became the most recycled material at around 30%, followed closely by glass at approximately 28%. Cans also increased moderately, while plastic experienced only a slight rise.
In 2002, recycling figures reached their highest levels for most materials. Glass recorded the highest percentage at about 47%, with paper following at roughly 40%. In contrast, cans showed a modest increase to around 22%, and plastic remained relatively low compared to other waste types.
