Rank	Countries/Territories	Count	Percent
1	United States	438	37.3%
2	China	368	31.3%
3	Germany	204	17.4%
4		33	2.8%
5	France	22	1.9%
6	Japan	18	1.5%
7	Korea, Republic of	18	1.5%
8	Netherlands	11	0.9%
9	Canada	9	0.8%
10	United Kingdom	6	0.5%
11	Cyprus	6	0.5%
12	Ireland	4	0.3%
13	Norway	4	0.3%
14	Singapore	4	0.3%
15	Australia	3	0.3%
16	Malaysia	3	0.3%
17	Hong Kong	3	0.3%
18	India	3	0.3%
19	Indonesia	2	0.2%
20	Iran, Islamic Republic of	2	0.2%
21	Mongolia	2	0.2%
22	Belgium	2	0.2%
23	Switzerland	2	0.2%
24	Taiwan	2	0.2%
25	Ukraine	1	0.1%
26	Russia	1	0.1%
27	Brazil	1	0.1%
28	Bangladesh	1	0.1%
29	Argentina	1	0.1%