Rank	Countries/Territories	Count	Percent
1	United States	353	45.5%
2	China	214	27.6%
3	Germany	88	11.3%
4	Iran, Islamic Republic of	19	2.4%
5	France	16	2.1%
6	Japan	15	1.9%
7	Canada	13	1.7%
8	Singapore	10	1.3%
9	United Kingdom	9	1.2%
10	Russia	6	0.8%
11	Netherlands	4	0.5%
12	Hong Kong	4	0.5%
13	Italy	4	0.5%
14	Malaysia	4	0.5%
15	Cyprus	4	0.5%
16	Australia	3	0.4%
17	Greece	3	0.4%
18	Argentina	2	0.3%
19	Korea, Republic of	2	0.3%
20	Mongolia	1	0.1%
21	Georgia	1	0.1%
22	Turkey	1	0.1%