Rank	Countries/Territories	Count	Percent
1	United States	578	36.9%
2	China	358	22.9%
3	Japan	161	10.3%
4	Germany	107	6.8%
5	France	40	2.6%
6	Australia	28	1.8%
7	Singapore	26	1.7%
8	Netherlands	22	1.4%
9	United Kingdom	22	1.4%
10	Spain	22	1.4%
11	India	19	1.2%
12	Canada	12	0.8%
13	Iran, Islamic Republic of	12	0.8%
14	Poland	12	0.8%
15	Viet Nam	11	0.7%
16	Malaysia	10	0.6%
17	Korea, Republic of	9	0.6%
18	Italy	9	0.6%
19	Russia	8	0.5%
20	Sweden	7	0.4%
21	Slovakia	7	0.4%
22	Ireland	6	0.4%
23	Brazil	6	0.4%
24	Indonesia	5	0.3%
25	Slovenia	5	0.3%
26	Mexico	5	0.3%
27	Taiwan	5	0.3%
28	Portugal	4	0.3%
29	Hong Kong	4	0.3%
30	Iceland	4	0.3%
31	Egypt	4	0.3%
32	Cyprus	4	0.3%
33	Argentina	3	0.2%
34	Mongolia	3	0.2%
35	Ukraine	3	0.2%
36	United Arab Emirates	2	0.1%
37	Thailand	2	0.1%
38	Turkey	2	0.1%
39	New Zealand	2	0.1%
40	South Africa	2	0.1%
41	Iraq	2	0.1%
42	Mauritius	2	0.1%
43	Czech Republic	2	0.1%
44	Denmark	1	0.1%
45	Colombia	1	0.1%
46	Croatia	1	0.1%
47	Chile	1	0.1%
48	Finland	1	0.1%
49	Philippines	1	0.1%
50	Switzerland	1	0.1%
51	Syrian Arab Republic	1	0.1%