Rank	Countries/Territories	Count	Percent
1	United States	629	39.7%
2	China	565	35.7%
3	Germany	132	8.3%
4	France	55	3.5%
5	Canada	29	1.8%
6	Belgium	17	1.1%
7	Netherlands	16	1%
8	South Africa	14	0.9%
9	Switzerland	14	0.9%
10	Singapore	13	0.8%
11	United Kingdom	11	0.7%
12	Japan	11	0.7%
13	Australia	10	0.6%
14	India	9	0.6%
15	Iran, Islamic Republic of	9	0.6%
16	Cyprus	8	0.5%
17	Taiwan	6	0.4%
18	Italy	6	0.4%
19	Brazil	5	0.3%
20	Korea, Republic of	3	0.2%
21	Russia	3	0.2%
22	Hungary	2	0.1%
23	Pakistan	2	0.1%
24	Ukraine	2	0.1%
25	Spain	2	0.1%
26	Latvia	2	0.1%
27	Mexico	2	0.1%
28	Ireland	2	0.1%
29	Hong Kong	1	0.1%
30	Mongolia	1	0.1%
31	Argentina	1	0.1%
32	Qatar	1	0.1%
33	Romania	1	0.1%