1900—2008: Trends for Sex, Drugs, and Alcohol(books.google.com)

1 pointsby bai14년 전-1 comments

http://books.google.com/ngrams/graph?content=sex%2Cdrugs%2Calcohol&year_start=1900&year_end=2008&corpus=5&smoothing=40

Way to go, society.

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