Rank	Countries/Territories	Count	Percent
1	United States	570	49.4%
2	China	256	22.2%
3	Germany	117	10.1%
4	India	54	4.7%
5	France	37	3.2%
6	Canada	29	2.5%
7	Korea, Republic of	26	2.3%
8	Singapore	12	1%
9	Hong Kong	8	0.7%
10	Cyprus	6	0.5%
11	Australia	4	0.3%
12	Japan	4	0.3%
13	Turkey	3	0.3%
14	Argentina	3	0.3%
15	Malaysia	2	0.2%
16	Mexico	2	0.2%
17	Netherlands	2	0.2%
18	Norway	2	0.2%
19	Iran, Islamic Republic of	2	0.2%
20	Iraq	2	0.2%
21	Ireland	2	0.2%
22	United Kingdom	2	0.2%
23	Spain	2	0.2%
24	Switzerland	2	0.2%
25	Saudi Arabia	2	0.2%
26	Taiwan	1	0.1%
27	Russia	1	0.1%
28	Bangladesh	1	0.1%
29	Brazil	1	0.1%