Rank	Countries/Territories	Count	Percent
1	United States	583	41.4%
2	China	274	19.4%
3	Germany	84	6%
4	Romania	36	2.6%
5	Spain	31	2.2%
6	Italy	30	2.1%
7	India	29	2.1%
8	United Kingdom	28	2%
9	Netherlands	27	1.9%
10	Japan	21	1.5%
11	Ireland	17	1.2%
12	Korea, Republic of	15	1.1%
13	France	15	1.1%
14	Canada	14	1%
15	Iran, Islamic Republic of	13	0.9%
16	Sweden	13	0.9%
17	Moldova, Republic of	12	0.9%
18	Australia	12	0.9%
19	Czech Republic	11	0.8%
20	Austria	10	0.7%
21	Turkey	10	0.7%
22	Singapore	9	0.6%
23	Hong Kong	9	0.6%
24	Belgium	8	0.6%
25	Brazil	8	0.6%
26	Mexico	7	0.5%
27	Thailand	7	0.5%
28	South Africa	5	0.4%
29	Russia	5	0.4%
30	Viet Nam	5	0.4%
31	Taiwan	4	0.3%
32	Hungary	4	0.3%
33	Bulgaria	4	0.3%
34	Cyprus	4	0.3%
35	Ethiopia	4	0.3%
36	Greece	4	0.3%
37	Guatemala	3	0.2%
38	Denmark	3	0.2%
39	Indonesia	3	0.2%
40	Iraq	3	0.2%
41	Switzerland	3	0.2%
42	Poland	3	0.2%
43	Venezuela, Bolivarian Republic of	2	0.1%
44	Norway	2	0.1%
45	Malaysia	2	0.1%
46	Egypt	2	0.1%
47	Colombia	2	0.1%
48	Chile	1	0.1%
49	Bangladesh	1	0.1%
50	Algeria	1	0.1%
51	Pakistan	1	0.1%
52	Philippines	1	0.1%
53	United Arab Emirates	1	0.1%
54	Portugal	1	0.1%
55	Morocco	1	0.1%
56	Saudi Arabia	1	0.1%