Examples of use of quintile
1. The bottom one–fifth of taxpayers pay 3.3 percent of their income, the next fifth 7.5 percent, the middle quintile 14.4 percent, the fourth quintile 18.6 percent, and the top fifth 25.1 percent.
2. Those in the bottom quintile, with scores below 4, average only $3,817 in per–capita GDP.
3. America‘s economy is so dynamic that in any five–year period, approximately 45 percent of Americans move from one income quintile to another.
4. Twenty percent move up from the bottom quintile in any 12–month period, and 40 to 50 percent move up over 10 to 20 years.
5. A classic study of children born between 1'42 and 1'72 found that fully 42 percent of those born into the poorest quintile ended up there also.