Rank	Countries/Territories	Count	Percent
1	United States	602	48.7%
2	China	175	14.2%
3	Germany	75	6.1%
4	Japan	63	5.1%
5	Mexico	42	3.4%
6	Canada	35	2.8%
7	Spain	32	2.6%
8	Singapore	18	1.5%
9	Netherlands	17	1.4%
10	France	13	1.1%
11	Australia	13	1.1%
12	United Kingdom	13	1.1%
13	India	11	0.9%
14	Korea, Republic of	11	0.9%
15	Switzerland	10	0.8%
16	Indonesia	9	0.7%
17	Russia	9	0.7%
18	Italy	8	0.6%
19	Chile	7	0.6%
20	Norway	5	0.4%
21	Poland	5	0.4%
22	Hong Kong	5	0.4%
23	Virgin Islands, British	5	0.4%
24	Taiwan	4	0.3%
25	Brazil	4	0.3%
26	Belarus	4	0.3%
27	Ethiopia	4	0.3%
28	Cyprus	4	0.3%
29	Czech Republic	4	0.3%
30	Bangladesh	3	0.2%
31	Burundi	2	0.2%
32	Colombia	2	0.2%
33	Ireland	2	0.2%
34	Saudi Arabia	2	0.2%
35	Mongolia	2	0.2%
36	Viet Nam	2	0.2%
37	Sweden	2	0.2%
38	Turkey	1	0.1%
39	Zambia	1	0.1%
40	New Zealand	1	0.1%
41	Romania	1	0.1%
42	Lithuania	1	0.1%
43	Malaysia	1	0.1%
44	Jordan	1	0.1%
45	Ecuador	1	0.1%
46	Argentina	1	0.1%
47	Greece	1	0.1%
48	Honduras	1	0.1%
49	Belgium	1	0.1%