Rank	Countries/Territories	Count	Percent
1	United States	264	33.2%
2	China	225	28.3%
3	Germany	64	8.1%
4	Canada	37	4.7%
5	India	28	3.5%
6	France	24	3%
7	Japan	15	1.9%
8	Sweden	13	1.6%
9	Netherlands	10	1.3%
10	Singapore	9	1.1%
11	Mexico	9	1.1%
12	Korea, Republic of	8	1%
13	Norway	8	1%
14	United Kingdom	7	0.9%
15	Romania	6	0.8%
16	Russia	6	0.8%
17	South Africa	5	0.6%
18	Thailand	3	0.4%
19	Poland	3	0.4%
20	Lebanon	3	0.4%
21	Lithuania	3	0.4%
22	Greece	3	0.4%
23	Italy	3	0.4%
24	Cyprus	3	0.4%
25	Australia	3	0.4%
26	Brunei Darussalam	3	0.4%
27	Argentina	2	0.3%
28	Ecuador	2	0.3%
29	Indonesia	2	0.3%
30	Ireland	2	0.3%
31	Guyana	2	0.3%
32	Pakistan	2	0.3%
33	Slovenia	2	0.3%
34	Tanzania, United Republic of	2	0.3%
35	Spain	2	0.3%
36	Taiwan	1	0.1%
37	Tunisia	1	0.1%
38	Ukraine	1	0.1%
39	Portugal	1	0.1%
40	Malaysia	1	0.1%
41	Morocco	1	0.1%
42	Jordan	1	0.1%
43	Georgia	1	0.1%
44	Egypt	1	0.1%
45	Croatia	1	0.1%
46	Bangladesh	1	0.1%