Rank	Countries/Territories	Count	Percent
1	United States	504	34.4%
2	China	429	29.3%
3	Germany	100	6.8%
4	India	57	3.9%
5	Japan	39	2.7%
6	Canada	33	2.3%
7	Portugal	31	2.1%
8	United Kingdom	31	2.1%
9	Korea, Republic of	30	2%
10	Bulgaria	28	1.9%
11	Netherlands	17	1.2%
12	Pakistan	16	1.1%
13	Argentina	15	1%
14	Singapore	14	1%
15	France	13	0.9%
16	Iran, Islamic Republic of	10	0.7%
17	Taiwan	10	0.7%
18	Turkey	8	0.5%
19	Sweden	8	0.5%
20	Ireland	7	0.5%
21	Poland	7	0.5%
22	Hong Kong	7	0.5%
23	Mexico	6	0.4%
24	Greece	5	0.3%
25	Cyprus	4	0.3%
26	Australia	4	0.3%
27	Belgium	4	0.3%
28	Colombia	3	0.2%
29	Indonesia	3	0.2%
30	Spain	3	0.2%
31	Switzerland	2	0.1%
32	Ukraine	2	0.1%
33	Saudi Arabia	2	0.1%
34	Peru	2	0.1%
35	Czech Republic	2	0.1%
36	Georgia	2	0.1%
37	Hungary	1	0.1%
38	Chile	1	0.1%
39	Brazil	1	0.1%
40	Nigeria	1	0.1%
41	Russia	1	0.1%
42	Monaco	1	0.1%
43	Mongolia	1	0.1%