Rank	Countries/Territories	Count	Percent
1	United States	442	43.5%
2	China	201	19.8%
3	Germany	111	10.9%
4	Canada	79	7.8%
5	Japan	35	3.4%
6	Netherlands	22	2.2%
7	France	18	1.8%
8	Australia	16	1.6%
9	India	14	1.4%
10	United Kingdom	14	1.4%
11	Singapore	12	1.2%
12	Korea, Republic of	7	0.7%
13	Argentina	6	0.6%
14	Cyprus	5	0.5%
15	Russia	5	0.5%
16	South Africa	4	0.4%
17	Hong Kong	4	0.4%
18	Romania	3	0.3%
19	Iran, Islamic Republic of	3	0.3%
20	Malaysia	2	0.2%
21	Bangladesh	2	0.2%
22	Brazil	2	0.2%
23	Mongolia	2	0.2%
24	Switzerland	2	0.2%
25	Ukraine	1	0.1%
26	New Zealand	1	0.1%
27	Algeria	1	0.1%
28	Mexico	1	0.1%
29	Ireland	1	0.1%
30	Ghana	1	0.1%