Rank	Countries/Territories	Count	Percent
1	United States	565	41.5%
2	China	264	19.4%
3	Germany	79	5.8%
4	Romania	36	2.6%
5	Spain	31	2.3%
6	Italy	30	2.2%
7	India	29	2.1%
8	United Kingdom	28	2.1%
9	Netherlands	23	1.7%
10	Ireland	17	1.2%
11	Japan	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	1%
16	Sweden	13	1%
17	Moldova, Republic of	12	0.9%
18	Australia	11	0.8%
19	Czech Republic	11	0.8%
20	Turkey	10	0.7%
21	Singapore	9	0.7%
22	Hong Kong	9	0.7%
23	Belgium	8	0.6%
24	Brazil	8	0.6%
25	Mexico	7	0.5%
26	Thailand	7	0.5%
27	Austria	6	0.4%
28	South Africa	5	0.4%
29	Russia	5	0.4%
30	Viet Nam	5	0.4%
31	Taiwan	4	0.3%
32	Bulgaria	4	0.3%
33	Cyprus	4	0.3%
34	Ethiopia	4	0.3%
35	Greece	4	0.3%
36	Hungary	4	0.3%
37	Indonesia	3	0.2%
38	Iraq	3	0.2%
39	Guatemala	3	0.2%
40	Switzerland	3	0.2%
41	Poland	3	0.2%
42	Venezuela, Bolivarian Republic of	2	0.1%
43	Denmark	2	0.1%
44	Egypt	2	0.1%
45	Colombia	2	0.1%
46	Norway	2	0.1%
47	Malaysia	2	0.1%
48	Pakistan	1	0.1%
49	Philippines	1	0.1%
50	Chile	1	0.1%
51	Bangladesh	1	0.1%
52	Algeria	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%