Rank	Countries/Territories	Count	Percent
1	United States	344	38.7%
2	China	152	17.1%
3	Germany	51	5.7%
4	Japan	37	4.2%
5	Korea, Republic of	34	3.8%
6	India	26	2.9%
7	Netherlands	24	2.7%
8	Singapore	16	1.8%
9	South Africa	15	1.7%
10	Mexico	15	1.7%
11	Italy	14	1.6%
12	Canada	12	1.3%
13	Turkey	11	1.2%
14	United Kingdom	9	1%
15	Kazakhstan	9	1%
16	Greece	8	0.9%
17	Spain	8	0.9%
18	Iran, Islamic Republic of	7	0.8%
19	Brazil	7	0.8%
20	Bulgaria	6	0.7%
21	Ukraine	6	0.7%
22	Taiwan	5	0.6%
23	Ireland	5	0.6%
24	Moldova, Republic of	5	0.6%
25	Pakistan	5	0.6%
26	Peru	4	0.4%
27	Portugal	4	0.4%
28	Cyprus	4	0.4%
29	Argentina	4	0.4%
30	Thailand	4	0.4%
31	Russia	4	0.4%
32	Switzerland	3	0.3%
33	Colombia	3	0.3%
34	Hong Kong	3	0.3%
35	Myanmar	3	0.3%
36	Nepal	2	0.2%
37	Lithuania	2	0.2%
38	Romania	2	0.2%
39	Norway	2	0.2%
40	France	2	0.2%
41	Georgia	2	0.2%
42	Belgium	2	0.2%
43	Australia	2	0.2%
44	Sudan	2	0.2%
45	Austria	1	0.1%
46	Israel	1	0.1%
47	Indonesia	1	0.1%
48	Nigeria	1	0.1%
49	Malaysia	1	0.1%