Rank	Countries/Territories	Count	Percent
1	United States	662	41.1%
2	China	493	30.6%
3	Germany	149	9.3%
4	Russia	35	2.2%
5	France	32	2%
6	Canada	32	2%
7	India	29	1.8%
8	Japan	29	1.8%
9	Korea, Republic of	19	1.2%
10	Taiwan	18	1.1%
11	Iran, Islamic Republic of	16	1%
12	Oman	13	0.8%
13	Singapore	10	0.6%
14	Cyprus	10	0.6%
15	Bulgaria	8	0.5%
16	Netherlands	8	0.5%
17	Egypt	6	0.4%
18	Hong Kong	5	0.3%
19	Ireland	5	0.3%
20	Argentina	4	0.2%
21	Turkey	4	0.2%
22	United Kingdom	4	0.2%
23	Italy	3	0.2%
24	Jordan	2	0.1%
25	New Zealand	2	0.1%
26	Latvia	2	0.1%
27	Malaysia	2	0.1%
28	Montenegro	1	0.1%
29	Ukraine	1	0.1%
30	Spain	1	0.1%
31	Iraq	1	0.1%
32	Indonesia	1	0.1%
33	Australia	1	0.1%
34	Belgium	1	0.1%