Rank	Countries/Territories	Count	Percent
1	United States	727	40.2%
2	China	510	28.2%
3	Canada	123	6.8%
4	Germany	101	5.6%
5	Japan	96	5.3%
6	Czech Republic	57	3.2%
7	France	33	1.8%
8	Singapore	23	1.3%
9	Netherlands	22	1.2%
10	Cyprus	18	1%
11	Italy	9	0.5%
12	Argentina	8	0.4%
13	Hong Kong	7	0.4%
14	Belarus	6	0.3%
15	Belgium	5	0.3%
16	Turkey	5	0.3%
17	Ukraine	4	0.2%
18	Russia	4	0.2%
19	Australia	4	0.2%
20	Iran, Islamic Republic of	4	0.2%
21	Egypt	4	0.2%
22	Slovakia	3	0.2%
23	South Africa	3	0.2%
24	Pakistan	3	0.2%
25	United Kingdom	3	0.2%
26	Taiwan	2	0.1%
27	Palestine, State of	2	0.1%
28	Poland	2	0.1%
29	Korea, Republic of	2	0.1%
30	Malaysia	2	0.1%
31	Finland	2	0.1%
32	Israel	2	0.1%
33	Bulgaria	1	0.1%
34	Croatia	1	0.1%
35	Mexico	1	0.1%
36	Mongolia	1	0.1%
37	Latvia	1	0.1%
38	New Zealand	1	0.1%
39	Nigeria	1	0.1%
40	Oman	1	0.1%
41	Romania	1	0.1%
42	Spain	1	0.1%
43	Thailand	1	0.1%