Rank	Countries/Territories	Count	Percent
1	United States	217	36.2%
2	China	115	19.2%
3	Germany	60	10%
4	Canada	36	6%
5	France	23	3.8%
6	Japan	13	2.2%
7	Italy	12	2%
8	Netherlands	12	2%
9	Saudi Arabia	12	2%
10	Greece	10	1.7%
11	Mexico	9	1.5%
12	Korea, Republic of	8	1.3%
13	India	7	1.2%
14	Egypt	5	0.8%
15	Ireland	4	0.7%
16	Bulgaria	4	0.7%
17	Poland	4	0.7%
18	Russia	4	0.7%
19	United Kingdom	4	0.7%
20	Portugal	3	0.5%
21	Argentina	3	0.5%
22	Denmark	3	0.5%
23	Cyprus	3	0.5%
24	Hong Kong	3	0.5%
25	Israel	2	0.3%
26	Indonesia	2	0.3%
27	Brazil	2	0.3%
28	Singapore	2	0.3%
29	South Africa	2	0.3%
30	Taiwan	2	0.3%
31	Turkey	2	0.3%
32	Viet Nam	2	0.3%
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	Puerto Rico	1	0.2%
39	Norway	1	0.2%
40	Australia	1	0.2%
41	Czech Republic	1	0.2%
42	Iran, Islamic Republic of	1	0.2%