Rank	Countries/Territories	Count	Percent
1	United States	409	39.5%
2	China	283	27.3%
3	Germany	101	9.8%
4	Russia	68	6.6%
5	Canada	32	3.1%
6	India	21	2%
7	Korea, Republic of	16	1.5%
8	Australia	12	1.2%
9	Japan	11	1.1%
10	Netherlands	10	1%
11	Singapore	9	0.9%
12	Spain	9	0.9%
13	United Kingdom	9	0.9%
14	Ireland	6	0.6%
15	France	5	0.5%
16	Cyprus	4	0.4%
17	Hong Kong	4	0.4%
18	Taiwan	3	0.3%
19	New Zealand	3	0.3%
20	Philippines	2	0.2%
21	Turkey	2	0.2%
22	Mongolia	2	0.2%
23	Iran, Islamic Republic of	2	0.2%
24	Argentina	2	0.2%
25	Chile	2	0.2%
26	Bangladesh	1	0.1%
27	Denmark	1	0.1%
28	Georgia	1	0.1%
29	Italy	1	0.1%
30	Mexico	1	0.1%
31	Sweden	1	0.1%
32	Switzerland	1	0.1%
33	South Africa	1	0.1%