Rank	Countries/Territories	Count	Percent
1	United States	810	50.3%
2	China	344	21.4%
3	Germany	143	8.9%
4	France	80	5%
5	Italy	38	2.4%
6	Netherlands	31	1.9%
7	Japan	27	1.7%
8		23	1.4%
9	Bulgaria	11	0.7%
10	Singapore	10	0.6%
11	Canada	9	0.6%
12	Hong Kong	9	0.6%
13	Korea, Republic of	8	0.5%
14	Cyprus	7	0.4%
15	India	6	0.4%
16	Australia	6	0.4%
17	United Kingdom	5	0.3%
18	South Africa	4	0.2%
19	Spain	4	0.2%
20	Oman	4	0.2%
21	Colombia	4	0.2%
22	Ireland	4	0.2%
23	Romania	3	0.2%
24	Lebanon	2	0.1%
25	Pakistan	2	0.1%
26	Iran, Islamic Republic of	2	0.1%
27	Greece	2	0.1%
28	Viet Nam	2	0.1%
29	Georgia	1	0.1%
30	Israel	1	0.1%
31	Belgium	1	0.1%
32	Brazil	1	0.1%
33	Argentina	1	0.1%
34	Poland	1	0.1%
35	Latvia	1	0.1%
36	Jordan	1	0.1%
37	Sweden	1	0.1%
38	Switzerland	1	0.1%
39	Turkey	1	0.1%