Rank	Countries/Territories	Count	Percent
1	United States	143	37.6%
2	China	134	35.3%
3	Germany	17	4.5%
4	Korea, Republic of	15	3.9%
5	India	13	3.4%
6	France	9	2.4%
7	Netherlands	7	1.8%
8	Italy	6	1.6%
9	Singapore	5	1.3%
10	Argentina	4	1.1%
11	Canada	4	1.1%
12	Brazil	3	0.8%
13	Japan	3	0.8%
14	Iran, Islamic Republic of	2	0.5%
15	Hong Kong	2	0.5%
16	Cyprus	2	0.5%
17	Ethiopia	2	0.5%
18	Taiwan	2	0.5%
19	Ukraine	2	0.5%
20	Australia	1	0.3%
21	Iraq	1	0.3%
22	Sweden	1	0.3%
23	Switzerland	1	0.3%
24	Philippines	1	0.3%