Rank	Countries/Territories	Count	Percent
1	United States	413	36.4%
2	China	363	32%
3	Germany	145	12.8%
4	India	38	3.4%
5	Singapore	29	2.6%
6	United Kingdom	14	1.2%
7	Netherlands	13	1.1%
8	France	12	1.1%
9	Japan	12	1.1%
10	Australia	12	1.1%
11	Korea, Republic of	11	1%
12	Canada	10	0.9%
13	Taiwan	5	0.4%
14	Malaysia	4	0.4%
15	Mongolia	4	0.4%
16	Cyprus	4	0.4%
17	Ireland	4	0.4%
18	Egypt	3	0.3%
19	Indonesia	3	0.3%
20	Czech Republic	3	0.3%
21	Argentina	3	0.3%
22	Italy	3	0.3%
23	Sweden	3	0.3%
24	Pakistan	2	0.2%
25	Russia	2	0.2%
26	Saudi Arabia	2	0.2%
27	New Zealand	2	0.2%
28	Morocco	2	0.2%
29	Iran, Islamic Republic of	2	0.2%
30	Israel	2	0.2%
31	Finland	1	0.1%
32	Bangladesh	1	0.1%
33	Brazil	1	0.1%
34	Denmark	1	0.1%
35	Norway	1	0.1%
36	Portugal	1	0.1%
37	Romania	1	0.1%
38	Switzerland	1	0.1%
39	Ukraine	1	0.1%