Rank	Countries/Territories	Count	Percent
1	United States	260	35.5%
2	China	149	20.4%
3	Germany	67	9.2%
4	Romania	30	4.1%
5	India	21	2.9%
6	Netherlands	19	2.6%
7	Korea, Republic of	18	2.5%
8	Canada	14	1.9%
9	Australia	12	1.6%
10	Philippines	12	1.6%
11	Russia	12	1.6%
12	United Kingdom	12	1.6%
13	Saudi Arabia	8	1.1%
14	Switzerland	7	1%
15	Greece	6	0.8%
16	Brazil	5	0.7%
17	France	5	0.7%
18	Italy	5	0.7%
19	Ireland	4	0.5%
20	Lithuania	4	0.5%
21	Singapore	4	0.5%
22	Malaysia	4	0.5%
23	Viet Nam	4	0.5%
24	Taiwan	3	0.4%
25	Sweden	3	0.4%
26	Lebanon	3	0.4%
27	Egypt	3	0.4%
28	Hong Kong	3	0.4%
29	Indonesia	3	0.4%
30	Armenia	3	0.4%
31	Belgium	2	0.3%
32	Luxembourg	2	0.3%
33	Israel	2	0.3%
34	Malta	2	0.3%
35	Poland	2	0.3%
36	Iraq	2	0.3%
37	South Africa	2	0.3%
38	Spain	2	0.3%
39	Turkey	2	0.3%
40	United Arab Emirates	2	0.3%
41	Ukraine	1	0.1%
42	Nepal	1	0.1%
43	Slovakia	1	0.1%
44	Jordan	1	0.1%
45	Belarus	1	0.1%
46	Croatia	1	0.1%
47	Cyprus	1	0.1%
48	Czech Republic	1	0.1%
49	Iran, Islamic Republic of	1	0.1%