Rank	Countries/Territories	Count	Percent
1	United States	327	39.2%
2	China	189	22.7%
3	Germany	108	12.9%
4	India	32	3.8%
5	Serbia	29	3.5%
6	France	22	2.6%
7	Qatar	20	2.4%
8	Korea, Republic of	14	1.7%
9	Japan	13	1.6%
10	United Kingdom	8	1%
11	Viet Nam	7	0.8%
12	Netherlands	6	0.7%
13	Singapore	6	0.7%
14	Hong Kong	6	0.7%
15	Cyprus	5	0.6%
16	Bosnia and Herzegovina	4	0.5%
17	Ireland	4	0.5%
18	Spain	4	0.5%
19	Taiwan	3	0.4%
20	Russia	3	0.4%
21	Egypt	3	0.4%
22	Canada	2	0.2%
23	Colombia	2	0.2%
24	Italy	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Malaysia	2	0.2%
27	Mexico	2	0.2%
28	Poland	2	0.2%
29	Switzerland	2	0.2%
30	Turkey	1	0.1%
31	Sweden	1	0.1%
32	Nigeria	1	0.1%
33	Philippines	1	0.1%
34	Mongolia	1	0.1%