Rank	Countries/Territories	Count	Percent
1	United States	152	28.4%
2	China	136	25.4%
3	Russia	30	5.6%
4	Singapore	24	4.5%
5	India	22	4.1%
6	United Kingdom	16	3%
7	Germany	15	2.8%
8	Japan	13	2.4%
9	Italy	12	2.2%
10	Viet Nam	12	2.2%
11	Netherlands	10	1.9%
12	Australia	8	1.5%
13	Ireland	7	1.3%
14	Canada	7	1.3%
15	Taiwan	7	1.3%
16	Philippines	6	1.1%
17	Lithuania	4	0.7%
18	Korea, Republic of	3	0.6%
19	Saudi Arabia	3	0.6%
20	Spain	3	0.6%
21	Thailand	3	0.6%
22	Turkey	3	0.6%
23	Sweden	3	0.6%
24	Puerto Rico	2	0.4%
25	Syrian Arab Republic	2	0.4%
26	Ukraine	2	0.4%
27	Zimbabwe	2	0.4%
28	Mongolia	2	0.4%
29	Montenegro	2	0.4%
30	Hong Kong	2	0.4%
31	Indonesia	2	0.4%
32	Bangladesh	2	0.4%
33	Belgium	2	0.4%
34	Algeria	2	0.4%
35	Albania	1	0.2%
36	Greece	1	0.2%
37	Egypt	1	0.2%
38	France	1	0.2%
39	Israel	1	0.2%
40	Kenya	1	0.2%
41	Nepal	1	0.2%
42	Nicaragua	1	0.2%
43	Norway	1	0.2%
44	Luxembourg	1	0.2%
45	Malaysia	1	0.2%
46	Sri Lanka	1	0.2%
47	South Africa	1	0.2%
48	Portugal	1	0.2%
49	Switzerland	1	0.2%