Rank	Countries/Territories	Count	Percent
1	United States	515	34.2%
2	China	476	31.6%
3	Germany	230	15.3%
4	Singapore	63	4.2%
5		37	2.5%
6	France	32	2.1%
7	Japan	30	2%
8	Korea, Republic of	20	1.3%
9	Russia	19	1.3%
10	Netherlands	13	0.9%
11	Canada	10	0.7%
12	Cyprus	10	0.7%
13	Norway	7	0.5%
14	United Kingdom	6	0.4%
15	Hong Kong	5	0.3%
16	India	5	0.3%
17	Australia	4	0.3%
18	Ireland	4	0.3%
19	Malaysia	3	0.2%
20	Mongolia	2	0.1%
21	Indonesia	2	0.1%
22	Iran, Islamic Republic of	2	0.1%
23	Belgium	2	0.1%
24	Switzerland	2	0.1%
25	Taiwan	2	0.1%
26	Ukraine	1	0.1%
27	Brazil	1	0.1%
28	Bangladesh	1	0.1%
29	Argentina	1	0.1%