Rank	Countries/Territories	Count	Percent
1	United States	335	37.1%
2	China	249	27.5%
3	Germany	143	15.8%
4	Japan	17	1.9%
5	Turkey	14	1.5%
6	India	13	1.4%
7	Singapore	12	1.3%
8	Italy	11	1.2%
9	Sweden	11	1.2%
10	Canada	10	1.1%
11	Colombia	8	0.9%
12	Cyprus	7	0.8%
13	Russia	7	0.8%
14	France	6	0.7%
15	Iran, Islamic Republic of	6	0.7%
16	Australia	5	0.6%
17	Brazil	5	0.6%
18	Netherlands	5	0.6%
19	Malaysia	4	0.4%
20	Spain	4	0.4%
21	Switzerland	4	0.4%
22	United Kingdom	4	0.4%
23	Ireland	4	0.4%
24	Ghana	3	0.3%
25	Romania	3	0.3%
26	Poland	3	0.3%
27	Portugal	2	0.2%
28	Hong Kong	2	0.2%
29	Bangladesh	2	0.2%
30	Bulgaria	1	0.1%
31	Dominican Republic	1	0.1%
32	Finland	1	0.1%
33	Korea, Republic of	1	0.1%
34	Mongolia	1	0.1%