Rank	Countries/Territories	Count	Percent
1	United States	375	42.6%
2	China	288	32.7%
3	Germany	63	7.2%
4	Russia	14	1.6%
5	Singapore	13	1.5%
6	Japan	13	1.5%
7	Korea, Republic of	12	1.4%
8	Canada	11	1.2%
9	France	9	1%
10	Norway	8	0.9%
11	Poland	7	0.8%
12	United Kingdom	7	0.8%
13	Australia	7	0.8%
14	India	7	0.8%
15	Netherlands	6	0.7%
16	Iran, Islamic Republic of	5	0.6%
17	Cyprus	4	0.5%
18	Bangladesh	3	0.3%
19	Hong Kong	3	0.3%
20	Spain	3	0.3%
21	Switzerland	3	0.3%
22	Taiwan	2	0.2%
23	Turkey	2	0.2%
24	Ukraine	2	0.2%
25	South Africa	2	0.2%
26	Malaysia	2	0.2%
27	Brazil	2	0.2%
28	Denmark	2	0.2%
29	Czech Republic	1	0.1%
30	Argentina	1	0.1%
31	Lebanon	1	0.1%
32	Ireland	1	0.1%
33	Pakistan	1	0.1%
34	Philippines	1	0.1%