Rank	Countries/Territories	Count	Percent
1	United States	328	32.5%
2	China	298	29.5%
3	Germany	85	8.4%
4	Canada	23	2.3%
5	United Kingdom	21	2.1%
6	Ireland	18	1.8%
7	Japan	18	1.8%
8	Netherlands	17	1.7%
9	India	13	1.3%
10	France	13	1.3%
11	Korea, Republic of	12	1.2%
12	Palestine, State of	11	1.1%
13	Peru	10	1%
14	Sweden	10	1%
15	Russia	9	0.9%
16	Singapore	9	0.9%
17	Iran, Islamic Republic of	9	0.9%
18	Czech Republic	9	0.9%
19	Bangladesh	8	0.8%
20	Hong Kong	8	0.8%
21	Turkey	8	0.8%
22	Romania	6	0.6%
23	Jordan	6	0.6%
24	Brazil	5	0.5%
25	Denmark	5	0.5%
26	Austria	4	0.4%
27	Cyprus	4	0.4%
28	Greece	4	0.4%
29	Saudi Arabia	4	0.4%
30	Switzerland	3	0.3%
31	Taiwan	3	0.3%
32	Viet Nam	3	0.3%
33	Croatia	3	0.3%
34	Mauritius	3	0.3%
35	Nigeria	3	0.3%
36	Norway	2	0.2%
37	Malaysia	2	0.2%
38	Italy	2	0.2%
39	Indonesia	2	0.2%
40	Colombia	2	0.2%
41	Chile	1	0.1%
42	Algeria	1	0.1%
43	Australia	1	0.1%
44	Mexico	1	0.1%
45	Pakistan	1	0.1%
46	Ukraine	1	0.1%
47	Tunisia	1	0.1%