In the early 1970's, although our country had already entered the take-off period of sustained, rapid growth, average income was still low, so that the proportion of taxpayers affected by the highly progressive system was small.
在民國六十年代初期，我國雖已歷經相當長期間的經濟成長階段，而步入了起飛的層次，但是國民的平均所得水準，仍然偏低。