The table compares the quantity of tax collection according to % of GDP in five various nations over the 30-year period from 1975, at 10-year intervals.
Overall, there was an upward trend in the figure for tax collected among those countries in the given period. Specifically, Sweden accounted for the highest rate of tax and recorded the most significant climb while a minimal variation was shown in that of the USA.
In terms of countries with the most considerable increase, Sweden witnessed a surge from a low of 46% to a high of 70.1% between 1975 and 2005. Similarly, a remarkable growth of over 17% was exhibited in the tax revenue in Japan before reaching a peak at 32.1%, three times as less as that of Sweden.
In the case of the remaining nations, the proportion of tax collection in Korea rose moderately by about 12% from 15.1%. Moreover, that of Turkey registered a slight reduction of 1.4% to 15% in 1985 before recovering and going up to the highest point of nearly 30% by the end of the period. It is notable that the percentage of tax revenue in the USA fluctuated from roughly a quarter to 27.4%.