Rank	Countries/Territories	Count	Percent
1	United States	364	42.8%
2	China	283	33.3%
3	Germany	75	8.8%
4	India	13	1.5%
5	Korea, Republic of	12	1.4%
6	Iran, Islamic Republic of	10	1.2%
7	Ireland	10	1.2%
8	France	9	1.1%
9	Japan	9	1.1%
10	Canada	8	0.9%
11	Netherlands	8	0.9%
12	Singapore	8	0.9%
13	Sweden	8	0.9%
14	United Kingdom	6	0.7%
15	Egypt	4	0.5%
16	Belgium	3	0.4%
17	Italy	3	0.4%
18	Malaysia	2	0.2%
19	Australia	2	0.2%
20	Cyprus	2	0.2%
21	Denmark	2	0.2%
22	Hong Kong	2	0.2%
23	Spain	2	0.2%
24	Taiwan	1	0.1%
25	South Africa	1	0.1%
26	Pakistan	1	0.1%
27	Viet Nam	1	0.1%
28	Indonesia	1	0.1%