Rank	Countries/Territories	Count	Percent
1	United States	323	42.3%
2	China	169	22.1%
3	Germany	76	10%
4	Japan	34	4.5%
5	France	28	3.7%
6	India	22	2.9%
7	Korea, Republic of	13	1.7%
8	Singapore	11	1.4%
9	Turkey	9	1.2%
10	United Kingdom	9	1.2%
11	Czech Republic	9	1.2%
12	Hong Kong	7	0.9%
13	Taiwan	6	0.8%
14	Italy	6	0.8%
15	Thailand	4	0.5%
16	Cyprus	4	0.5%
17	Ecuador	3	0.4%
18	Argentina	3	0.4%
19	Bulgaria	3	0.4%
20	Canada	3	0.4%
21	Russia	3	0.4%
22	Iran, Islamic Republic of	3	0.4%
23	Netherlands	3	0.4%
24	Romania	2	0.3%
25	Saudi Arabia	2	0.3%
26	Spain	1	0.1%
27	Ireland	1	0.1%
28	Venezuela, Bolivarian Republic of	1	0.1%
29	Australia	1	0.1%
30	Belgium	1	0.1%
31	Greece	1	0.1%
32	Lithuania	1	0.1%
33	Mexico	1	0.1%