Rank	Countries/Territories	Count	Percent
1	United States	269	37.3%
2	China	223	30.9%
3	Germany	90	12.5%
4	Turkey	26	3.6%
5	Korea, Republic of	15	2.1%
6	Japan	12	1.7%
7	Singapore	10	1.4%
8	India	8	1.1%
9	Mexico	7	1%
10	Netherlands	6	0.8%
11	Taiwan	6	0.8%
12	South Africa	5	0.7%
13	Spain	4	0.6%
14	Italy	4	0.6%
15	Hong Kong	4	0.6%
16	France	3	0.4%
17	Iran, Islamic Republic of	3	0.4%
18	Jordan	3	0.4%
19	Sweden	3	0.4%
20	Russia	3	0.4%
21	Switzerland	2	0.3%
22	Lithuania	2	0.3%
23	Malaysia	2	0.3%
24	Indonesia	2	0.3%
25	Australia	2	0.3%
26	Canada	1	0.1%
27	Cyprus	1	0.1%
28	Denmark	1	0.1%
29	Georgia	1	0.1%
30	Rwanda	1	0.1%
31	Puerto Rico	1	0.1%
32	United Kingdom	1	0.1%