Rank	Countries/Territories	Count	Percent
1	China	540	34.8%
2	United States	419	27%
3	Germany	65	4.2%
4	India	63	4.1%
5	Iran, Islamic Republic of	47	3%
6	Italy	29	1.9%
7	Korea, Republic of	28	1.8%
8	Spain	28	1.8%
9	Slovenia	27	1.7%
10	Netherlands	25	1.6%
11	Japan	23	1.5%
12	Canada	23	1.5%
13	Mexico	22	1.4%
14	Brazil	18	1.2%
15	Thailand	15	1%
16	Ireland	14	0.9%
17	Hong Kong	12	0.8%
18	Romania	11	0.7%
19	Taiwan	11	0.7%
20	United Kingdom	9	0.6%
21	Ecuador	9	0.6%
22	Australia	9	0.6%
23	Indonesia	8	0.5%
24	Turkey	8	0.5%
25	Bulgaria	7	0.5%
26	Greece	7	0.5%
27	Hungary	6	0.4%
28	Argentina	6	0.4%
29	Russia	6	0.4%
30	Singapore	6	0.4%
31	Qatar	5	0.3%
32	France	5	0.3%
33	Denmark	4	0.3%
34	Poland	4	0.3%
35	Sweden	4	0.3%
36	Tunisia	4	0.3%
37	Portugal	3	0.2%
38	New Zealand	3	0.2%
39	Cyprus	3	0.2%
40	Kazakhstan	2	0.1%
41	Malaysia	2	0.1%
42	Tanzania, United Republic of	2	0.1%
43	Uganda	2	0.1%
44	Viet Nam	1	0.1%
45	Switzerland	1	0.1%
46	Serbia	1	0.1%
47	Georgia	1	0.1%
48	Colombia	1	0.1%
49	Austria	1	0.1%
50	Bangladesh	1	0.1%