Rank	Countries/Territories	Count	Percent
1	United States	500	43.5%
2	China	345	30%
3	Germany	96	8.3%
4	Canada	23	2%
5	France	19	1.7%
6	Netherlands	18	1.6%
7	United Kingdom	17	1.5%
8	India	13	1.1%
9	Switzerland	11	1%
10	Japan	10	0.9%
11	Greece	9	0.8%
12	Hong Kong	8	0.7%
13	Korea, Republic of	8	0.7%
14	Malaysia	8	0.7%
15	Iraq	7	0.6%
16	Brazil	5	0.4%
17	Ukraine	5	0.4%
18	Pakistan	5	0.4%
19	Mexico	4	0.3%
20	Viet Nam	4	0.3%
21	Taiwan	3	0.3%
22	Australia	3	0.3%
23	Italy	3	0.3%
24	Ireland	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Bangladesh	2	0.2%
27	Cyprus	2	0.2%
28	Egypt	2	0.2%
29	Turkey	2	0.2%
30	United Arab Emirates	2	0.2%
31	Singapore	2	0.2%
32	Spain	1	0.1%
33	Romania	1	0.1%
34	Russia	1	0.1%
35	Mongolia	1	0.1%
36	Morocco	1	0.1%
37	Nepal	1	0.1%
38	Kazakhstan	1	0.1%
39	Norway	1	0.1%
40	Georgia	1	0.1%
41	Argentina	1	0.1%