Rank	Countries/Territories	Count	Percent
1	United States	674	43.5%
2	China	439	28.4%
3	Germany	169	10.9%
4	Canada	43	2.8%
5	Iran, Islamic Republic of	39	2.5%
6	France	20	1.3%
7	Netherlands	17	1.1%
8	Ukraine	17	1.1%
9	Japan	13	0.8%
10	Australia	11	0.7%
11	Hong Kong	10	0.6%
12	United Kingdom	9	0.6%
13	Singapore	9	0.6%
14	Norway	6	0.4%
15	Cyprus	6	0.4%
16	Latvia	5	0.3%
17	Pakistan	4	0.3%
18	Sweden	4	0.3%
19	Taiwan	4	0.3%
20	Turkey	4	0.3%
21	Spain	3	0.2%
22	Nigeria	3	0.2%
23	Korea, Republic of	3	0.2%
24	Brazil	3	0.2%
25	Bulgaria	2	0.1%
26	Austria	2	0.1%
27	Argentina	2	0.1%
28	Mexico	2	0.1%
29	India	2	0.1%
30	Iraq	2	0.1%
31	Ireland	2	0.1%
32	Myanmar	2	0.1%
33	Philippines	2	0.1%
34	Portugal	2	0.1%
35	Russia	2	0.1%
36	South Africa	2	0.1%
37	Thailand	2	0.1%
38	Viet Nam	2	0.1%
39	Romania	1	0.1%
40	Palestine, State of	1	0.1%
41	Mongolia	1	0.1%
42	Denmark	1	0.1%
43	Bangladesh	1	0.1%