Rank	Countries/Territories	Count	Percent
1	United States	319	33.8%
2	China	240	25.4%
3	Germany	119	12.6%
4	Singapore	27	2.9%
5	India	21	2.2%
6	United Kingdom	19	2%
7	Pakistan	17	1.8%
8	Japan	16	1.7%
9	Netherlands	15	1.6%
10	Turkey	12	1.3%
11	Denmark	11	1.2%
12	Iran, Islamic Republic of	10	1.1%
13	Canada	9	1%
14	Italy	8	0.8%
15	Russia	8	0.8%
16	Portugal	7	0.7%
17	Ireland	7	0.7%
18	Indonesia	7	0.7%
19	Brazil	6	0.6%
20	Romania	6	0.6%
21	New Zealand	5	0.5%
22	Israel	4	0.4%
23	Jordan	4	0.4%
24	Saudi Arabia	4	0.4%
25	Cyprus	4	0.4%
26	Sweden	4	0.4%
27	Taiwan	3	0.3%
28	Australia	3	0.3%
29	Greece	3	0.3%
30	Finland	3	0.3%
31	France	3	0.3%
32	Egypt	2	0.2%
33	Bulgaria	2	0.2%
34	Colombia	2	0.2%
35	Puerto Rico	2	0.2%
36	Poland	2	0.2%
37	Venezuela, Bolivarian Republic of	2	0.2%
38	United Arab Emirates	1	0.1%
39	Peru	1	0.1%
40	Philippines	1	0.1%
41	Kazakhstan	1	0.1%
42	Korea, Republic of	1	0.1%
43	Kuwait	1	0.1%
44	Bangladesh	1	0.1%
45	Ethiopia	1	0.1%