Rank	Countries/Territories	Count	Percent
1	United States	648	39.8%
2	China	315	19.3%
3	Germany	97	6%
4	Australia	56	3.4%
5	Romania	40	2.5%
6	India	32	2%
7	France	31	1.9%
8	Spain	31	1.9%
9	Italy	30	1.8%
10	Netherlands	29	1.8%
11	United Kingdom	29	1.8%
12	Japan	26	1.6%
13	Canada	20	1.2%
14	Iran, Islamic Republic of	19	1.2%
15	Ireland	17	1%
16	Korea, Republic of	15	0.9%
17	Sweden	13	0.8%
18	Moldova, Republic of	12	0.7%
19	Czech Republic	11	0.7%
20	Austria	10	0.6%
21	Hong Kong	10	0.6%
22	Turkey	10	0.6%
23	Singapore	9	0.6%
24	Brazil	9	0.6%
25	Belgium	8	0.5%
26	Mexico	8	0.5%
27	Thailand	7	0.4%
28	Taiwan	6	0.4%
29	Russia	6	0.4%
30	South Africa	5	0.3%
31	Viet Nam	5	0.3%
32	Poland	4	0.2%
33	Hungary	4	0.2%
34	Bulgaria	4	0.2%
35	Greece	4	0.2%
36	Cyprus	4	0.2%
37	Ethiopia	4	0.2%
38	Guatemala	3	0.2%
39	Denmark	3	0.2%
40	Egypt	3	0.2%
41	Indonesia	3	0.2%
42	Iraq	3	0.2%
43	Portugal	3	0.2%
44	Switzerland	3	0.2%
45	Norway	2	0.1%
46	Pakistan	2	0.1%
47	Venezuela, Bolivarian Republic of	2	0.1%
48	Myanmar	2	0.1%
49	Malaysia	2	0.1%
50	Colombia	2	0.1%
51	Chile	1	0.1%
52	Algeria	1	0.1%
53	Bangladesh	1	0.1%
54	Morocco	1	0.1%
55	Philippines	1	0.1%
56	Saudi Arabia	1	0.1%
57	Ukraine	1	0.1%
58	United Arab Emirates	1	0.1%