Rank	Countries/Territories	Count	Percent
1	United States	304	40.9%
2	China	168	22.6%
3	Germany	82	11%
4	Russia	66	8.9%
5	Korea, Republic of	15	2%
6	India	14	1.9%
7	Japan	9	1.2%
8	Australia	9	1.2%
9	Spain	9	1.2%
10	Netherlands	8	1.1%
11	United Kingdom	8	1.1%
12	Canada	7	0.9%
13	Ireland	6	0.8%
14	France	5	0.7%
15	Singapore	5	0.7%
16	Hong Kong	4	0.5%
17	Cyprus	3	0.4%
18	New Zealand	3	0.4%
19	Philippines	2	0.3%
20	Taiwan	2	0.3%
21	Turkey	2	0.3%
22	Chile	2	0.3%
23	Iran, Islamic Republic of	2	0.3%
24	Italy	1	0.1%
25	Argentina	1	0.1%
26	Bangladesh	1	0.1%
27	Denmark	1	0.1%
28	Georgia	1	0.1%
29	Mexico	1	0.1%
30	Sweden	1	0.1%
31	Switzerland	1	0.1%