Rank	Countries/Territories	Count	Percent
1	United States	354	40.6%
2	China	230	26.4%
3	Germany	91	10.4%
4	Japan	52	6%
5	Singapore	18	2.1%
6	Russia	14	1.6%
7	France	14	1.6%
8	Canada	13	1.5%
9	Hong Kong	10	1.1%
10	Iran, Islamic Republic of	7	0.8%
11	United Kingdom	7	0.8%
12	Netherlands	6	0.7%
13	Argentina	6	0.7%
14	Cyprus	5	0.6%
15	Ireland	5	0.6%
16	Viet Nam	5	0.6%
17	Panama	4	0.5%
18	Australia	4	0.5%
19	Chile	3	0.3%
20	Jordan	3	0.3%
21	Indonesia	2	0.2%
22	Colombia	2	0.2%
23	Bangladesh	2	0.2%
24	Portugal	2	0.2%
25	Mongolia	2	0.2%
26	Nigeria	2	0.2%
27	Ukraine	2	0.2%
28	United Arab Emirates	1	0.1%
29	Switzerland	1	0.1%
30	Pakistan	1	0.1%
31	Bulgaria	1	0.1%
32	Korea, Republic of	1	0.1%
33	Mexico	1	0.1%