Rank	Countries/Territories	Count	Percent
1	United States	379	35.5%
2	China	341	32%
3	Germany	95	8.9%
4	Canada	51	4.8%
5	Spain	19	1.8%
6	Singapore	18	1.7%
7	Netherlands	16	1.5%
8	Ireland	16	1.5%
9	Russia	15	1.4%
10	Japan	12	1.1%
11	Korea, Republic of	12	1.1%
12	France	10	0.9%
13	Brazil	9	0.8%
14	Taiwan	8	0.7%
15	United Kingdom	7	0.7%
16	Hong Kong	6	0.6%
17	Australia	6	0.6%
18	Cyprus	5	0.5%
19	Bangladesh	4	0.4%
20	India	4	0.4%
21	Mexico	4	0.4%
22	Serbia	3	0.3%
23	Poland	3	0.3%
24	Sweden	3	0.3%
25	Iran, Islamic Republic of	3	0.3%
26	Italy	3	0.3%
27	Bolivia, Plurinational State of	2	0.2%
28	Algeria	2	0.2%
29	Argentina	2	0.2%
30	Chile	2	0.2%
31	Portugal	2	0.2%
32	Romania	2	0.2%
33	South Africa	1	0.1%
34	Tunisia	1	0.1%
35	Ukraine	1	0.1%