Rank	Countries/Territories	Count	Percent
1	United States	518	43.1%
2	China	373	31.1%
3	Germany	56	4.7%
4	Japan	42	3.5%
5	Canada	28	2.3%
6	Singapore	28	2.3%
7	France	26	2.2%
8	United Kingdom	17	1.4%
9	Netherlands	13	1.1%
10	Switzerland	12	1%
11	Korea, Republic of	12	1%
12	Iran, Islamic Republic of	9	0.7%
13	Australia	9	0.7%
14	Cyprus	8	0.7%
15	Egypt	6	0.5%
16	India	4	0.3%
17	Thailand	4	0.3%
18	Turkey	4	0.3%
19	Ukraine	4	0.3%
20	Sweden	3	0.2%
21	Italy	3	0.2%
22	Mauritius	3	0.2%
23	Hong Kong	2	0.2%
24	Brazil	2	0.2%
25	Norway	2	0.2%
26	Slovenia	2	0.2%
27	South Africa	2	0.2%
28	Spain	2	0.2%
29	Taiwan	2	0.2%
30	New Zealand	1	0.1%
31	Bulgaria	1	0.1%
32	Argentina	1	0.1%
33	Mongolia	1	0.1%
34	Latvia	1	0.1%