Rank	Countries/Territories	Count	Percent
1	United States	696	37.5%
2	China	586	31.6%
3	Germany	171	9.2%
4	Spain	50	2.7%
5	India	41	2.2%
6	Ukraine	31	1.7%
7	Korea, Republic of	24	1.3%
8	Japan	23	1.2%
9	France	23	1.2%
10	Switzerland	23	1.2%
11	Netherlands	21	1.1%
12	United Kingdom	20	1.1%
13	Australia	17	0.9%
14	Canada	13	0.7%
15	Russia	11	0.6%
16	Hong Kong	9	0.5%
17	Iran, Islamic Republic of	9	0.5%
18	Singapore	8	0.4%
19	Turkey	8	0.4%
20	Taiwan	7	0.4%
21	Denmark	7	0.4%
22	Romania	7	0.4%
23	Sweden	6	0.3%
24	Iraq	6	0.3%
25	Cyprus	5	0.3%
26	Finland	4	0.2%
27	Israel	4	0.2%
28	Italy	3	0.2%
29	Norway	3	0.2%
30	Serbia	2	0.1%
31	New Zealand	2	0.1%
32	Malaysia	2	0.1%
33	Ireland	2	0.1%
34	Egypt	2	0.1%
35	Venezuela, Bolivarian Republic of	2	0.1%
36	Thailand	1	0.1%
37	Argentina	1	0.1%
38	Bangladesh	1	0.1%
39	Bulgaria	1	0.1%
40	Indonesia	1	0.1%
41	Mexico	1	0.1%
42	Mongolia	1	0.1%
43	Poland	1	0.1%
44	Qatar	1	0.1%