Prevalence and diffusion of helmet use at ski areas in Western North America in 2001–02

P A Andersen; D B Buller; M D Scott; B J Walkosz; J H Voeks; G R Cutter; M B Dignan

doi:10.1136/ip.2004.005967

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Original Article

Prevalence and diffusion of helmet use at ski areas in Western North America in 2001–02

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Online download statistics by month: November 2004 to June 2020

	Abstract	Full	Pdf
Nov 2004	0	1	0
Dec 2004	99	86	18
Jan 2005	99	93	9
Feb 2005	54	69	12
Mar 2005	60	72	4
Apr 2005	19	23	1
May 2005	10	17	2
Jun 2005	11	27	4
Jul 2005	9	15	2
Aug 2005	10	12	1
Sep 2005	13	10	2
Oct 2005	21	30	1
Nov 2005	20	18	3
Dec 2005	17	12	6
Jan 2006	15	15	13
Feb 2006	16	25	11
Mar 2006	7	28	13
Apr 2006	6	14	8
May 2006	4	8	7
Jun 2006	9	14	3
Jul 2006	5	17	3
Aug 2006	13	8	5
Sep 2006	15	12	11
Oct 2006	12	24	6
Nov 2006	8	21	9
Dec 2006	8	32	11
Jan 2007	16	37	16
Feb 2007	18	26	15
Mar 2007	18	54	24
Apr 2007	21	11	8
May 2007	12	4	4
Jun 2007	8	5	2
Jul 2007	4	5	3
Aug 2007	8	5	7
Sep 2007	20	0	1
Oct 2007	19	7	3
Nov 2007	28	2	3
Dec 2007	24	5	3
Jan 2008	34	3	1
Feb 2008	40	6	2
Mar 2008	29	9	8
Apr 2008	19	3	3
May 2008	4	0	0
Jun 2008	8	2	6
Jul 2008	7	1	2
Aug 2008	8	3	2
Sep 2008	24	2	3
Oct 2008	15	3	3
Nov 2008	47	5	9
Dec 2008	40	2	2
Jan 2009	65	2	2
Feb 2009	35	4	4
Mar 2009	60	7	1
Apr 2009	19	7	5
May 2009	9	0	3
Jun 2009	4	4	5
Jul 2009	6	3	4
Aug 2009	8	0	0
Sep 2009	13	1	0
Oct 2009	13	3	4
Nov 2009	18	3	1
Dec 2009	15	6	7
Jan 2010	11	3	7
Feb 2010	26	25	6
Mar 2010	9	3	1
Apr 2010	9	4	2
May 2010	5	4	2
Jun 2010	20	4	5
Jul 2010	8	0	4
Aug 2010	4	0	0
Sep 2010	26	3	1
Oct 2010	8	1	4
Nov 2010	18	9	3
Dec 2010	10	4	4
Jan 2011	4	1	0
Feb 2011	11	2	1
Mar 2011	13	6	6
Apr 2011	8	7	1
May 2011	14	2	3
Jun 2011	6	1	1
Jul 2011	5	3	1
Aug 2011	15	3	1
Sep 2011	7	2	2
Oct 2011	9	3	2
Nov 2011	13	8	8
Dec 2011	13	7	7
Jan 2012	17	6	7
Feb 2012	13	8	4
Mar 2012	18	3	7
Apr 2012	18	3	2
May 2012	4	6	5
Jun 2012	7	8	4
Jul 2012	7	2	0
Aug 2012	8	2	4
Sep 2012	11	7	10
Oct 2012	24	10	7
Nov 2012	19	6	6
Dec 2012	20	4	6
Jan 2013	46	12	6
Feb 2013	31	9	9
Mar 2013	30	16	6
Apr 2013	44	28	9
May 2013	45	19	2
Jun 2013	8	3	3
Jul 2013	9	3	2
Aug 2013	17	5	4
Sep 2013	12	8	3
Oct 2013	9	8	1
Nov 2013	18	7	5
Dec 2013	4	3	3
Jan 2014	18	6	12
Feb 2014	9	4	8
Mar 2014	8	5	2
Apr 2014	5	3	0
May 2014	12	5	1
Jun 2014	7	4	1
Jul 2014	10	5	2
Aug 2014	5	7	0
Sep 2014	7	7	2
Oct 2014	11	6	3
Nov 2014	12	28	1
Dec 2014	12	11	5
Jan 2015	9	0	1
Feb 2015	13	5	7
Mar 2015	16	7	1
Apr 2015	14	7	1
May 2015	3	20	1
Jun 2015	8	17	1
Jul 2015	5	3	0
Aug 2015	2	4	2
Sep 2015	11	12	6
Oct 2015	1	5	2
Nov 2015	6	6	0
Dec 2015	8	9	4
Jan 2016	52	4	4
Feb 2016	6	9	3
Mar 2016	24	3	1
Apr 2016	7	5	4
May 2016	19	5	4
Jun 2016	4	5	1
Jul 2016	11	5	3
Aug 2016	8	5	0
Sep 2016	5	4	1
Oct 2016	12	4	2
Nov 2016	12	8	2
Dec 2016	8	0	0
Jan 2017	18	3	0
Feb 2017	6	7	8
Mar 2017	2	6	1
Apr 2017	3	10	1
May 2017	1	5	1
Jun 2017	2	6	9
Jul 2017	7	6	1
Aug 2017	11	10	2
Sep 2017	16	16	3
Oct 2017	19	17	0
Nov 2017	20	16	1
Dec 2017	17	13	0
Jan 2018	16	12	2
Feb 2018	20	14	5
Mar 2018	48	27	12
Apr 2018	21	15	3
May 2018	21	21	6
Jun 2018	18	14	6
Jul 2018	28	22	3
Aug 2018	19	15	4
Sep 2018	27	17	0
Oct 2018	22	12	2
Nov 2018	31	13	3
Dec 2018	36	24	12
Jan 2019	15	7	0
Feb 2019	29	19	3
Mar 2019	32	19	8
Apr 2019	25	13	7
May 2019	13	13	5
Jun 2019	8	8	3
Jul 2019	10	8	5
Aug 2019	5	5	4
Sep 2019	3	3	3
Oct 2019	9	6	4
Nov 2019	8	8	3
Dec 2019	15	11	7
Jan 2020	45	45	3
Feb 2020	6	4	4
Mar 2020	6	6	2
Apr 2020	39	38	2
May 2020	57	56	6
Jun 2020	12	12	0
Total	3153	2079	760

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