Rank	Countries/Territories	Count	Percent
1	United States	316	33.3%
2	China	134	14.1%
3	Germany	134	14.1%
4	Australia	60	6.3%
5	India	49	5.2%
6	United Kingdom	35	3.7%
7	Norway	34	3.6%
8	France	26	2.7%
9	Netherlands	23	2.4%
10	Iran, Islamic Republic of	15	1.6%
11	Japan	13	1.4%
12	Sweden	13	1.4%
13	Denmark	12	1.3%
14	Philippines	11	1.2%
15	Palestine, State of	9	0.9%
16	Russia	7	0.7%
17	Cyprus	6	0.6%
18	Ireland	6	0.6%
19	Indonesia	4	0.4%
20	Turkey	4	0.4%
21	Italy	4	0.4%
22	Portugal	4	0.4%
23	Poland	3	0.3%
24	Singapore	3	0.3%
25	Slovenia	3	0.3%
26	South Africa	3	0.3%
27	Israel	3	0.3%
28	Kenya	2	0.2%
29	Canada	2	0.2%
30	Colombia	2	0.2%
31	United Arab Emirates	2	0.2%
32	Austria	1	0.1%
33	Brazil	1	0.1%
34	Korea, Republic of	1	0.1%
35	Malawi	1	0.1%
36	Ukraine	1	0.1%
37	Switzerland	1	0.1%
38	Romania	1	0.1%