Rank	Countries/Territories	Count	Percent
1	United States	356	38.5%
2	China	308	33.3%
3	Germany	50	5.4%
4	Singapore	43	4.7%
5	Japan	20	2.2%
6	France	18	1.9%
7	Korea, Republic of	12	1.3%
8	Netherlands	11	1.2%
9	Hong Kong	11	1.2%
10	United Kingdom	10	1.1%
11	Canada	9	1%
12	India	8	0.9%
13	Cyprus	8	0.9%
14	Iran, Islamic Republic of	7	0.8%
15	Taiwan	7	0.8%
16		6	0.6%
17	Argentina	6	0.6%
18	Australia	6	0.6%
19	Turkey	5	0.5%
20	Romania	4	0.4%
21	Switzerland	3	0.3%
22	Belgium	3	0.3%
23	Indonesia	3	0.3%
24	Italy	2	0.2%
25	Ukraine	2	0.2%
26	Russia	2	0.2%
27	Mongolia	2	0.2%
28	Czech Republic	1	0.1%
29	Egypt	1	0.1%