Rank	Countries/Territories	Count	Percent
1	United States	251	32.6%
2	China	229	29.8%
3	Germany	55	7.2%
4	India	39	5.1%
5	Japan	38	4.9%
6	Spain	15	2%
7	Indonesia	12	1.6%
8	Austria	12	1.6%
9	Russia	10	1.3%
10	France	8	1%
11	South Africa	8	1%
12	Iran, Islamic Republic of	7	0.9%
13	Australia	6	0.8%
14	Netherlands	6	0.8%
15	Korea, Republic of	6	0.8%
16	Mexico	6	0.8%
17	Taiwan	5	0.7%
18	Cyprus	5	0.7%
19	Turkey	5	0.7%
20	United Kingdom	4	0.5%
21	Canada	4	0.5%
22	Philippines	4	0.5%
23	Switzerland	3	0.4%
24	Belgium	3	0.4%
25	Viet Nam	3	0.4%
26	Brazil	2	0.3%
27	Argentina	2	0.3%
28	Denmark	2	0.3%
29	Colombia	2	0.3%
30	Croatia	2	0.3%
31	Tanzania, United Republic of	2	0.3%
32	Kazakhstan	2	0.3%
33	Israel	2	0.3%
34	Italy	2	0.3%
35	Morocco	1	0.1%
36	Lao People's Democratic Republic	1	0.1%
37	Romania	1	0.1%
38	Singapore	1	0.1%
39	Hong Kong	1	0.1%
40	Iraq	1	0.1%
41	Ukraine	1	0.1%