Rank	Countries/Territories	Count	Percent
1	United States	275	39.1%
2	China	174	24.8%
3	Japan	51	7.3%
4	Germany	50	7.1%
5	Korea, Republic of	18	2.6%
6	France	16	2.3%
7	Singapore	13	1.8%
8	South Africa	10	1.4%
9	Netherlands	10	1.4%
10	India	10	1.4%
11	Bangladesh	10	1.4%
12	Iran, Islamic Republic of	7	1%
13	Taiwan	7	1%
14	Spain	6	0.9%
15	Russia	5	0.7%
16	Austria	5	0.7%
17	Australia	4	0.6%
18	Guatemala	4	0.6%
19	Cyprus	4	0.6%
20	Hong Kong	3	0.4%
21	Canada	3	0.4%
22	Ireland	3	0.4%
23	Indonesia	3	0.4%
24	Peru	3	0.4%
25	Turkey	2	0.3%
26	United Kingdom	2	0.3%
27	Italy	2	0.3%
28	Malaysia	1	0.1%
29	Mexico	1	0.1%
30	Thailand	1	0.1%