Generation X features birth years from the 1960s and has been studied.
Generation X , or Gen X , is the demographic cohort following the baby boomers .	demographic	demography	cohort	Cohort (statistics)	baby boomers	baby boomers
There are no precise dates for when this cohort starts or ends ; demographers and researchers typically use starting birth years ranging from the early-to-mid 1960s and ending birth years ranging from the late 1970s to early 1980s .	cohort	Cohort (statistics)
Demography -LRB- from prefix demo - from Ancient Greek  dmos meaning `` the people '' , and - graphy from  graph , implies `` writing , description or measurement '' -RRB- is the statistical study of populations , especially human beings .	Ancient Greek	Ancient Greek	statistical study	statistical study	human beings	human beings
