Rank	Countries/Territories	Count	Percent
1	United States	311	32.1%
2	China	310	32%
3	Germany	72	7.4%
4	France	33	3.4%
5	Canada	21	2.2%
6	Netherlands	20	2.1%
7	Japan	18	1.9%
8	United Kingdom	17	1.8%
9	Russia	16	1.6%
10	Iran, Islamic Republic of	15	1.5%
11	Spain	11	1.1%
12	Sweden	11	1.1%
13	India	10	1%
14	Czech Republic	10	1%
15	Pakistan	9	0.9%
16	Peru	8	0.8%
17	Korea, Republic of	8	0.8%
18	Ukraine	8	0.8%
19	Singapore	6	0.6%
20	Egypt	6	0.6%
21	Indonesia	6	0.6%
22	Cyprus	5	0.5%
23	Italy	5	0.5%
24	Philippines	4	0.4%
25	Poland	3	0.3%
26	Saudi Arabia	3	0.3%
27	Nepal	2	0.2%
28	Romania	2	0.2%
29	Hungary	2	0.2%
30	Argentina	2	0.2%
31	Taiwan	2	0.2%
32	Tunisia	1	0.1%
33	Australia	1	0.1%
34	Brazil	1	0.1%
35	Ethiopia	1	0.1%
36	Iraq	1	0.1%
37	Ireland	1	0.1%
38	Ghana	1	0.1%
39	Greece	1	0.1%
40	Hong Kong	1	0.1%
41	New Zealand	1	0.1%
42	Lebanon	1	0.1%
43	Malaysia	1	0.1%
44	Mongolia	1	0.1%
45	Portugal	1	0.1%