Fact
In the U.S. in 2015, 66.7% of young adult smokers made a past year quit attempt.
Source 1:
Babb S, Malarcher A, Schauer G, Asman K, Jamal A. Quitting Smoking Among Adults — United States, 2000–2015. MMWR Morb Mortal Wkly Rep 6 Jan 2017;65:1457–1464.
https://www.cdc.gov/mmwr/volumes/65/wr/mm6552a1.htm?s_cid=mm6552a1_w%20