Rank	Countries/Territories	Count	Percent
1	United States	200	35.3%
2	China	109	19.2%
3	Germany	60	10.6%
4	Canada	36	6.3%
5	France	22	3.9%
6	Italy	12	2.1%
7	Netherlands	12	2.1%
8	Saudi Arabia	12	2.1%
9	Japan	11	1.9%
10	Greece	10	1.8%
11	Mexico	9	1.6%
12	India	7	1.2%
13	Egypt	5	0.9%
14	Ireland	4	0.7%
15	Bulgaria	4	0.7%
16	Russia	4	0.7%
17	Poland	4	0.7%
18	Korea, Republic of	4	0.7%
19	Portugal	3	0.5%
20	Argentina	3	0.5%
21	Denmark	3	0.5%
22	Hong Kong	3	0.5%
23	United Kingdom	3	0.5%
24	Viet Nam	2	0.4%
25	Israel	2	0.4%
26	Indonesia	2	0.4%
27	Cyprus	2	0.4%
28	Brazil	2	0.4%
29	Singapore	2	0.4%
30	South Africa	2	0.4%
31	Taiwan	2	0.4%
32	Turkey	2	0.4%
33	Ukraine	1	0.2%
34	Tanzania, United Republic of	1	0.2%
35	Thailand	1	0.2%
36	Sweden	1	0.2%
37	Switzerland	1	0.2%
38	Norway	1	0.2%
39	Australia	1	0.2%
40	Czech Republic	1	0.2%
41	Iran, Islamic Republic of	1	0.2%