Rank	Countries/Territories	Count	Percent
1	United States	720	52.4%
2	China	304	22.1%
3	Germany	114	8.3%
4	France	73	5.3%
5	Japan	27	2%
6	Netherlands	27	2%
7	Bulgaria	11	0.8%
8	Italy	10	0.7%
9	Korea, Republic of	8	0.6%
10	Hong Kong	8	0.6%
11	Canada	7	0.5%
12	Australia	6	0.4%
13	India	6	0.4%
14	Singapore	6	0.4%
15	Cyprus	5	0.4%
16	Colombia	4	0.3%
17	Ireland	4	0.3%
18	South Africa	4	0.3%
19	Spain	4	0.3%
20	Oman	4	0.3%
21	United Kingdom	3	0.2%
22	Viet Nam	2	0.1%
23	Pakistan	2	0.1%
24	Lebanon	2	0.1%
25	Iran, Islamic Republic of	2	0.1%
26	Greece	2	0.1%
27	Georgia	1	0.1%
28	Israel	1	0.1%
29	Argentina	1	0.1%
30	Belgium	1	0.1%
31	Brazil	1	0.1%
32	Latvia	1	0.1%
33	Jordan	1	0.1%
34	Sweden	1	0.1%
35	Switzerland	1	0.1%
36	Turkey	1	0.1%