Taiwan's massive growing wealth gap, smaller middle class per news: 16.8 times to 66.9 today

from the news link:
the Directorate General of Budget, Accounting and Statistics (主計總處, DGBAS) under the Executive Yuan (行政院) reveals a stark reality beneath these impressive numbers. The wealth gap has exploded from 16.8 times three decades ago to a staggering 66.9 times today.

I notice more and more, much more than middle class Japan or even in Italy/Estonia/ and smaller one in taiwan. In taiwan can see the rich with lux Euro Cars (more than in the EU) and expensive food and homes
English news link

What does this even mean? Also pointless without comparison with other countries

It means top 20% earn 66 time more (6600% more) than the bottom 20% of peoples in Taiwan. The number in middle class has droped to about 30% of the peoples.

For comparision in Japan area where I am from 60% or so would say they are middle class

In Estonia our EU base for business 30-40% think they are middle, but trending higher than Taiwan

Could also mean the top 1% skews that top 20% figure.

Workers become poorer, boss gets rich