Rank	Countries/Territories	Count	Percent
1	United States	451	45.4%
2	China	280	28.2%
3	Germany	104	10.5%
4	Netherlands	24	2.4%
5	France	18	1.8%
6	Canada	16	1.6%
7	India	12	1.2%
8	Sweden	11	1.1%
9	Portugal	8	0.8%
10	Russia	7	0.7%
11	South Africa	7	0.7%
12	Japan	7	0.7%
13	Australia	5	0.5%
14	Brazil	4	0.4%
15	Korea, Republic of	4	0.4%
16	Nigeria	3	0.3%
17	Hong Kong	3	0.3%
18	Kenya	2	0.2%
19	Bangladesh	2	0.2%
20	Argentina	2	0.2%
21	Cyprus	2	0.2%
22	Egypt	2	0.2%
23	Norway	2	0.2%
24	Romania	2	0.2%
25	New Zealand	2	0.2%
26	Mongolia	2	0.2%
27	Ukraine	2	0.2%
28	Virgin Islands, British	2	0.2%
29	Taiwan	1	0.1%
30	Spain	1	0.1%
31	Singapore	1	0.1%
32	Lithuania	1	0.1%
33	Mauritius	1	0.1%
34	Bulgaria	1	0.1%
35	Ireland	1	0.1%
36	Georgia	1	0.1%