Rank	Countries/Territories	Count	Percent
1	United States	159	27.4%
2	China	110	18.9%
3	Germany	43	7.4%
4	Korea, Republic of	34	5.9%
5	India	19	3.3%
6	Hungary	17	2.9%
7	United Kingdom	17	2.9%
8	Japan	16	2.8%
9	France	16	2.8%
10	Indonesia	16	2.8%
11	Colombia	16	2.8%
12	Mexico	15	2.6%
13	Netherlands	10	1.7%
14	Russia	7	1.2%
15	Peru	6	1%
16	Thailand	6	1%
17	Canada	6	1%
18	Chile	5	0.9%
19	Egypt	5	0.9%
20	Ghana	5	0.9%
21	Costa Rica	4	0.7%
22	Cyprus	4	0.7%
23	Spain	4	0.7%
24	Philippines	4	0.7%
25	Saudi Arabia	3	0.5%
26	El Salvador	3	0.5%
27	Hong Kong	3	0.5%
28	Iran, Islamic Republic of	2	0.3%
29	Israel	2	0.3%
30	Moldova, Republic of	2	0.3%
31	Malaysia	2	0.3%
32	Estonia	2	0.3%
33	Ecuador	2	0.3%
34	Argentina	2	0.3%
35	Portugal	2	0.3%
36	Singapore	1	0.2%
37	Switzerland	1	0.2%
38	Tanzania, United Republic of	1	0.2%
39	Australia	1	0.2%
40	Brazil	1	0.2%
41	Cambodia	1	0.2%
42	Greece	1	0.2%
43	Haiti	1	0.2%
44	Mauritius	1	0.2%
45	Latvia	1	0.2%
46	Lebanon	1	0.2%
47	Nigeria	1	0.2%