The given bar chart depicts the proportion of governmental expenditure on road infrastructure and transportation systems across four different nations over a period of a decade, from 1990 to 2005. Looking from an overall perspective, it is readily apparent that the average investment in road and transit in Portugal was consistently the highest, while the UK recorded the lowest statistic among the 4 countries in question.
In 1990, Portugal’s government allocated more than a quarter of the total spending on transportation. Meanwhile, Italy invested approximately 20%, which was nearly double that of the UK and the US, each representing roughly 10%. By 1995, albeit declining slightly to under 25%, Portugal retained its leading position. Italy, the UK, and the US followed a similar trend, dropping to approximately 20%, 8%, and 10%, respectively.
The following years saw a shift in the spending patterns. Portugal’s data dropped steadily to just exactly 20% in 2005; this was followed by Italy, which, despite a surge to 22% in 2000, witnessed a dip to just under 20% at the end of the period. The UK followed a similar trend, increasing to exceed 10% and ending with around 8%. Conversely, the USA’s share of total spending on transport systems rose modestly to precisely 15% in 2005.