Rank	Countries/Territories	Count	Percent
1	United States	394	43.1%
2	China	208	22.8%
3	Germany	68	7.4%
4	Russia	33	3.6%
5	France	28	3.1%
6	Japan	25	2.7%
7	Netherlands	14	1.5%
8	United Kingdom	14	1.5%
9	India	13	1.4%
10	Iran, Islamic Republic of	10	1.1%
11	Canada	8	0.9%
12	Australia	8	0.9%
13	Korea, Republic of	8	0.9%
14	Sweden	8	0.9%
15	Cyprus	7	0.8%
16	Ireland	6	0.7%
17	Taiwan	6	0.7%
18	Singapore	5	0.5%
19	South Africa	4	0.4%
20	Turkey	4	0.4%
21	Malaysia	4	0.4%
22	Italy	4	0.4%
23	Egypt	4	0.4%
24	Bulgaria	4	0.4%
25	Brazil	3	0.3%
26	Indonesia	3	0.3%
27	Hong Kong	3	0.3%
28	Slovakia	3	0.3%
29	Pakistan	2	0.2%
30	Philippines	2	0.2%
31	Greece	2	0.2%
32	Bangladesh	2	0.2%
33	Denmark	1	0.1%
34	Romania	1	0.1%
35	New Zealand	1	0.1%
36	Mongolia	1	0.1%
37	Spain	1	0.1%
38	Ukraine	1	0.1%
39	Thailand	1	0.1%