Rank	Countries/Territories	Count	Percent
1	United States	579	53.7%
2	China	221	20.5%
3	Germany	95	8.8%
4	France	57	5.3%
5	Japan	22	2%
6	Netherlands	19	1.8%
7	Italy	10	0.9%
8	Hong Kong	8	0.7%
9	Korea, Republic of	8	0.7%
10	Singapore	5	0.5%
11	Australia	5	0.5%
12	Bulgaria	5	0.5%
13	Canada	4	0.4%
14	Colombia	4	0.4%
15	Cyprus	4	0.4%
16	Oman	4	0.4%
17	Spain	4	0.4%
18	United Kingdom	3	0.3%
19	Ireland	3	0.3%
20	Iran, Islamic Republic of	2	0.2%
21	Greece	2	0.2%
22	Pakistan	2	0.2%
23	South Africa	2	0.2%
24	Lebanon	2	0.2%
25	Jordan	1	0.1%
26	Sweden	1	0.1%
27	Switzerland	1	0.1%
28	Turkey	1	0.1%
29	Israel	1	0.1%
30	Argentina	1	0.1%
31	Georgia	1	0.1%
32	Belgium	1	0.1%
33	Brazil	1	0.1%