Rank	Countries/Territories	Count	Percent
1	United States	507	42.5%
2	China	416	34.8%
3	Germany	82	6.9%
4		40	3.4%
5	France	38	3.2%
6	Netherlands	11	0.9%
7	Russia	11	0.9%
8	India	9	0.8%
9	Australia	9	0.8%
10	Romania	7	0.6%
11	Oman	5	0.4%
12	Serbia	4	0.3%
13	Singapore	4	0.3%
14	Belarus	4	0.3%
15	Brazil	4	0.3%
16	Canada	4	0.3%
17	Iran, Islamic Republic of	4	0.3%
18	Hong Kong	3	0.3%
19	Argentina	3	0.3%
20	Venezuela, Bolivarian Republic of	3	0.3%
21	United Kingdom	3	0.3%
22	Ukraine	2	0.2%
23	Philippines	2	0.2%
24	Norway	2	0.2%
25	Bangladesh	2	0.2%
26	Cyprus	2	0.2%
27	Czech Republic	2	0.2%
28	Hungary	2	0.2%
29	Ireland	2	0.2%
30	Japan	2	0.2%
31	Malaysia	1	0.1%
32	Iraq	1	0.1%
33	Georgia	1	0.1%
34	Spain	1	0.1%
35	Uganda	1	0.1%