Rank	Countries/Territories	Count	Percent
1	United States	152	32.4%
2	China	128	27.3%
3	Germany	53	11.3%
4	India	21	4.5%
5	Canada	15	3.2%
6	Netherlands	13	2.8%
7	France	12	2.6%
8	Switzerland	12	2.6%
9	Japan	9	1.9%
10	Korea, Republic of	8	1.7%
11	Italy	6	1.3%
12	Spain	6	1.3%
13	Singapore	5	1.1%
14	Iran, Islamic Republic of	5	1.1%
15	Mexico	4	0.9%
16	Nepal	3	0.6%
17	Saudi Arabia	3	0.6%
18	Ukraine	2	0.4%
19	United Kingdom	2	0.4%
20	Malaysia	2	0.4%
21	Hong Kong	2	0.4%
22	Bangladesh	2	0.4%
23	Cyprus	2	0.4%
24	Russia	1	0.2%
25	Taiwan	1	0.2%