Rank	Countries/Territories	Count	Percent
1	United States	581	44.3%
2	China	343	26.2%
3	Germany	109	8.3%
4	France	84	6.4%
5	Singapore	32	2.4%
6	India	24	1.8%
7	Japan	21	1.6%
8	Netherlands	12	0.9%
9	Russia	10	0.8%
10	Saudi Arabia	8	0.6%
11	Canada	8	0.6%
12	Cyprus	6	0.5%
13	Korea, Republic of	6	0.5%
14	Mongolia	5	0.4%
15	Australia	5	0.4%
16	Bangladesh	5	0.4%
17	Thailand	4	0.3%
18	Italy	3	0.2%
19	Jordan	3	0.2%
20	Iran, Islamic Republic of	3	0.2%
21	Iraq	3	0.2%
22	New Zealand	2	0.2%
23	Qatar	2	0.2%
24	Pakistan	2	0.2%
25	Bulgaria	2	0.2%
26	Cambodia	2	0.2%
27	Czech Republic	2	0.2%
28	Dominican Republic	2	0.2%
29	Argentina	2	0.2%
30	Hong Kong	2	0.2%
31	Turkey	2	0.2%
32	United Kingdom	2	0.2%
33	Taiwan	2	0.2%
34	Spain	1	0.1%
35	Indonesia	1	0.1%
36	Greece	1	0.1%
37	Egypt	1	0.1%
38	Finland	1	0.1%
39	Palestine, State of	1	0.1%
40	Peru	1	0.1%
41	Poland	1	0.1%
42	Romania	1	0.1%
43	Norway	1	0.1%
44	Ireland	1	0.1%
45	Latvia	1	0.1%