Rank	Countries/Territories	Count	Percent
1	United States	271	32.9%
2	China	238	28.9%
3	Germany	64	7.8%
4	Canada	37	4.5%
5	India	29	3.5%
6	France	27	3.3%
7	Japan	16	1.9%
8	Sweden	13	1.6%
9	Netherlands	10	1.2%
10	Singapore	9	1.1%
11	Mexico	9	1.1%
12	Korea, Republic of	8	1%
13	Norway	8	1%
14	United Kingdom	7	0.8%
15	Romania	6	0.7%
16	Russia	6	0.7%
17	South Africa	5	0.6%
18	Thailand	4	0.5%
19	Italy	3	0.4%
20	Poland	3	0.4%
21	Lebanon	3	0.4%
22	Lithuania	3	0.4%
23	Brunei Darussalam	3	0.4%
24	Greece	3	0.4%
25	Croatia	3	0.4%
26	Cyprus	3	0.4%
27	Australia	3	0.4%
28	Argentina	2	0.2%
29	Brazil	2	0.2%
30	Ecuador	2	0.2%
31	Guyana	2	0.2%
32	Indonesia	2	0.2%
33	Ireland	2	0.2%
34	Pakistan	2	0.2%
35	Slovenia	2	0.2%
36	Tanzania, United Republic of	2	0.2%
37	Spain	2	0.2%
38	Taiwan	1	0.1%
39	Tunisia	1	0.1%
40	Ukraine	1	0.1%
41	Portugal	1	0.1%
42	Malaysia	1	0.1%
43	Morocco	1	0.1%
44	Jordan	1	0.1%
45	Georgia	1	0.1%
46	Egypt	1	0.1%
47	Bangladesh	1	0.1%