Rank	Countries/Territories	Count	Percent
1	United States	476	38.8%
2	China	263	21.4%
3	Germany	165	13.4%
4	India	54	4.4%
5	Romania	28	2.3%
6	United Arab Emirates	26	2.1%
7	Korea, Republic of	19	1.5%
8	Japan	16	1.3%
9	Netherlands	15	1.2%
10	France	15	1.2%
11	Slovakia	13	1.1%
12	Mexico	13	1.1%
13	Saudi Arabia	10	0.8%
14	Ireland	10	0.8%
15	United Kingdom	10	0.8%
16		8	0.7%
17	Australia	7	0.6%
18	Cyprus	7	0.6%
19	Singapore	7	0.6%
20	Taiwan	7	0.6%
21	Russia	6	0.5%
22	Canada	5	0.4%
23	Hong Kong	4	0.3%
24	Belgium	4	0.3%
25	Brazil	4	0.3%
26	Iran, Islamic Republic of	4	0.3%
27	Egypt	3	0.2%
28	Argentina	3	0.2%
29	Ukraine	3	0.2%
30	Turkey	2	0.2%
31	Bangladesh	2	0.2%
32	Bulgaria	2	0.2%
33	Israel	2	0.2%
34	Pakistan	2	0.2%
35	Palestine, State of	2	0.2%
36	Peru	2	0.2%
37	Poland	2	0.2%
38	Portugal	2	0.2%
39	Nigeria	1	0.1%
40	Norway	1	0.1%
41	Sweden	1	0.1%
42	Jamaica	1	0.1%
43	Indonesia	1	0.1%