Rank	Countries/Territories	Count	Percent
1	United States	327	30.8%
2	China	326	30.7%
3	Germany	110	10.4%
4	Russia	103	9.7%
5	Japan	41	3.9%
6	France	24	2.3%
7	Netherlands	20	1.9%
8	Singapore	16	1.5%
9		15	1.4%
10	Canada	9	0.8%
11	Hong Kong	9	0.8%
12	Cyprus	7	0.7%
13	United Kingdom	7	0.7%
14	Italy	5	0.5%
15	Spain	4	0.4%
16	Korea, Republic of	4	0.4%
17	Mexico	3	0.3%
18	India	3	0.3%
19	Australia	3	0.3%
20	Czech Republic	2	0.2%
21	Ecuador	2	0.2%
22	Israel	2	0.2%
23	Syrian Arab Republic	2	0.2%
24	Taiwan	2	0.2%
25	Thailand	2	0.2%
26	Viet Nam	2	0.2%
27	Norway	2	0.2%
28	Peru	2	0.2%
29	Saudi Arabia	2	0.2%
30	Sweden	1	0.1%
31	Luxembourg	1	0.1%
32	Iran, Islamic Republic of	1	0.1%
33	Egypt	1	0.1%
34	Brazil	1	0.1%
35	Argentina	1	0.1%