Rank	Countries/Territories	Count	Percent
1	United States	498	38.8%
2	China	350	27.3%
3	Germany	227	17.7%
4	Japan	29	2.3%
5	Australia	22	1.7%
6	Netherlands	21	1.6%
7	United Kingdom	21	1.6%
8	Spain	17	1.3%
9	Singapore	10	0.8%
10	Korea, Republic of	9	0.7%
11	Canada	9	0.7%
12	Bulgaria	7	0.5%
13	Cyprus	7	0.5%
14	Russia	7	0.5%
15	Ukraine	5	0.4%
16	France	5	0.4%
17	Iran, Islamic Republic of	5	0.4%
18	Chile	4	0.3%
19	Turkey	4	0.3%
20	Romania	4	0.3%
21	Hong Kong	3	0.2%
22	India	2	0.2%
23	Italy	2	0.2%
24	Bangladesh	2	0.2%
25	Brazil	2	0.2%
26	Switzerland	2	0.2%
27	Norway	2	0.2%
28	Pakistan	1	0.1%
29	Portugal	1	0.1%
30	Mongolia	1	0.1%
31	Jordan	1	0.1%
32	Slovakia	1	0.1%
33	Austria	1	0.1%
34	Argentina	1	0.1%
35	Georgia	1	0.1%