The given table illustrates the percentages of GDP extracted through taxation, data collected from five different countries at a 10-year interval from 1975 to 2005.
Looking from an overall perspective, it is readily apparent that there were varying degrees of increase in the proportion of tax revenue taken from GDP.
At the initial point of the survey, it is reported that Sweden consistently held the highest proportion of tax revenue to GDP. Although its growth was gradual in the first 10 years, rising by only 1%, the figure then significantly increased and skyrocketed to its peak at 70.1% in 2005. Conversely, the USA started off as the second highest at 25.1%, this country underwent only a small uptick over the next three decades, reaching 27,4% at the end of the surveyed period.
In terms of the remaining three countries, Korea witnessed an increase from 15.1% to 27% in the first decade before leveling off in the following years. Meanwhile, the data of Turkey and Japan showed slight disparity at the beginning, with the figures fluctuating between 15% and 16%, then they both experienced a substantial increase with 32.4% and 27%, respectively.