Rank	Countries/Territories	Count	Percent
1	United States	348	43.8%
2	China	229	28.8%
3	Germany	74	9.3%
4	Japan	18	2.3%
5	Canada	18	2.3%
6	France	16	2%
7	Singapore	12	1.5%
8	Netherlands	9	1.1%
9	Iran, Islamic Republic of	7	0.9%
10	Hong Kong	6	0.8%
11	Korea, Republic of	6	0.8%
12	Australia	6	0.8%
13	Poland	5	0.6%
14	Turkey	5	0.6%
15	Sweden	4	0.5%
16	Taiwan	4	0.5%
17	Cyprus	4	0.5%
18	Pakistan	4	0.5%
19	Argentina	3	0.4%
20	United Kingdom	3	0.4%
21	Portugal	2	0.3%
22	Romania	2	0.3%
23	Mongolia	2	0.3%
24	Brazil	2	0.3%
25	Georgia	2	0.3%
26	Ireland	2	0.3%
27	Lithuania	1	0.1%
28	Spain	1	0.1%