Rank	Countries/Territories	Count	Percent
1	United States	405	36.1%
2	China	344	30.7%
3	Germany	109	9.7%
4	Japan	40	3.6%
5	India	36	3.2%
6	Spain	23	2%
7	Korea, Republic of	20	1.8%
8	Singapore	19	1.7%
9	France	17	1.5%
10	Russia	13	1.2%
11	Ukraine	10	0.9%
12	Ireland	10	0.9%
13	Turkey	9	0.8%
14	United Kingdom	8	0.7%
15	Netherlands	7	0.6%
16	Iraq	6	0.5%
17	Hong Kong	6	0.5%
18	Canada	6	0.5%
19	Brazil	4	0.4%
20	Italy	4	0.4%
21	Iran, Islamic Republic of	3	0.3%
22	Argentina	3	0.3%
23	Cyprus	3	0.3%
24	Czech Republic	3	0.3%
25	Philippines	3	0.3%
26	Poland	2	0.2%
27	Australia	2	0.2%
28	Belgium	2	0.2%
29	Mexico	2	0.2%
30	Peru	1	0.1%
31	Sweden	1	0.1%
32	Switzerland	1	0.1%