Region	Number and % of authors		Country	Number of authors
North America	233	48.70%	United States	198
			Canada	35
Europe	86	18%	United Kingdom	41
			Sweden	13
			Ireland	9
			Finland	7
			Italy	4
			Turkey	4
			Denmark	3
			Switzerland	2
			Belgium	2
			Germany	1
Asia	63	13.20%	China	12
			Japan	11
			Korea	7
			India	6
			Kuwait	6
			Saudi Arabia	5
			Singapore	3
			Cambodia	2
			Laos	2
			Bangladesh	2
			United Arab Emirates	2
			Jordan	2
			Thailand	1
			Vietnam	1
			Indonesia	1
Oceania	35	7.40%	Australia	26
			New Zealand	9
Africa	27	5.60%	Botswana	6
			Malawi	5
			Rwanda	4
			Ethiopia	4
			South Africa	3
			Uganda	2
			Kenya	1
			Tanzania	1
			Nigeria	1
South America	20	4.2%	Brazil	12
			Nicaragua	5
			Mexico	3
Latin American and Caribbean Nations	3	0.6%	Haiti	1
			Dominica	1
			The Bahamas	1
Unknown	11	2.3%		11