MTF - Loneliness, Friendship, Meaninglessness, Suicide

	A	B	C	D	E	F	G	H
1	Monitoring the Future Dataset (12th Grade)
2	A lot of times I feel lonely
3	RESPONSES: 1 = Disagree; 2 = Mostly Disagree; 3 = Neither; 4 = Mostly Agree; 5 = Agree
4	Responses were merged into a binary variable: 1-2 is now 0 = All else
5	8th, 10th, and 12th graders
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7	POOLED AVG - 2 year buckets - weighted
8		Boys	Girls
9	1997	19%	28%
10	1999	17%	27%
11	2001	20%	26%
12	2003	19%	25%
13	2005	18%	28%
14	2007	16%	27%
15	2009	17%	26%
16	2011	18%	27%
17	2013	19%	30%
18	2015	21%	36%
19	2017	22%	37%
20	2019	26%	38%
21	2020	27%	41%
22	2021	30%	46%
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31					Boys (No closed friends)	Girls (no close friends)	Boys (Lonely)	Girls (Lonely)
32		66%	75%	1997	34%	25%	19%	28%
33		68%	76%	1999	32%	24%	17%	27%
34		69%	77%	2001	31%	23%	20%	26%
35		69%	77%	2003	31%	23%	19%	25%
36		70%	77%	2005	30%	23%	18%	28%
37		70%	77%	2007	30%	23%	16%	27%
38		70%	77%	2009	30%	23%	17%	26%
39		71%	78%	2011	29%	22%	18%	27%
40		70%	76%	2013	30%	24%	19%	30%
41		67%	72%	2015	33%	28%	21%	36%
42		66%	71%	2017	34%	29%	22%	37%
43		62%	68%	2019	38%	32%	26%	38%
44		61%	69%	2020	39%	31%	27%	41%
45		58%	65%	2021	42%	35%	30%	46%
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49					Boys (close friends)	Girls (close friends)	Boys (Lonely)	Girls (Lonely)
50				1997	66%	75%	19%	28%
51				1999	68%	76%	17%	27%
52				2001	69%	77%	20%	26%
53				2003	69%	77%	19%	25%
54				2005	70%	77%	18%	28%
55				2007	70%	77%	16%	27%
56				2009	70%	77%	17%	26%
57				2011	71%	78%	18%	27%
58				2013	70%	76%	19%	30%
59				2015	67%	72%	21%	36%
60				2017	66%	71%	22%	37%
61				2019	62%	68%	26%	38%
62				2020	61%	69%	27%	41%
63				2021	58%	65%	30%	46%
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