Rank	Countries/Territories	Count	Percent
1	United States	268	34.6%
2	China	267	34.5%
3	Germany	86	11.1%
4	India	23	3%
5	Singapore	23	3%
6	Canada	12	1.6%
7	Japan	9	1.2%
8	Sweden	9	1.2%
9	Taiwan	9	1.2%
10	Netherlands	9	1.2%
11	Ireland	8	1%
12	France	6	0.8%
13	Korea, Republic of	6	0.8%
14	Iraq	5	0.6%
15	Cyprus	5	0.6%
16	Lithuania	4	0.5%
17	Argentina	3	0.4%
18	Indonesia	3	0.4%
19	Russia	3	0.4%
20	Saudi Arabia	2	0.3%
21	Norway	2	0.3%
22	Philippines	2	0.3%
23	United Kingdom	2	0.3%
24	Iran, Islamic Republic of	2	0.3%
25	Australia	2	0.3%
26	Botswana	2	0.3%
27	Ecuador	1	0.1%
28	Malaysia	1	0.1%