The provided bar charts demonstrate the performance of expenditure on roads and transportation infrastructure in four distinct countries between 1990 and 2005.
Overall, it is clearly seen that the percentage of government spending on roads and transport in four countries witnessed a downward trend at the end of the period of time, while USA had a slight variation and nearly stable.
According to the bar charts, Portugal had the greatest amount of money spent on highways and transportation over the period, standing at just over 25% in 1990; this figure was the highest among four countries over the 15-year period. Although this figure significantly decreased to around 15% in 2005. Additionally, this followed by Italian government spent on roads and transport accounting for exactly 20% in the first of the period and continuing to decline by 7% by 2005.
Besides, USA experienced an insignificant fluctuation, maintaining 15% in both 1990 and 2005. Moreover, UK was the lowest amount of money spent on highways and transportation over the period, standing at just above 5% in 2000 and increased slightly in 2005, though not considerably.