Rank	Countries/Territories	Count	Percent
1	United States	402	39.8%
2	China	225	22.3%
3	Germany	144	14.2%
4	Poland	41	4.1%
5	India	31	3.1%
6	Korea, Republic of	22	2.2%
7	Canada	21	2.1%
8	Singapore	12	1.2%
9	Netherlands	11	1.1%
10	France	10	1%
11	Nepal	9	0.9%
12	Australia	9	0.9%
13	Japan	7	0.7%
14	Norway	7	0.7%
15	Cyprus	6	0.6%
16	Russia	5	0.5%
17	Spain	4	0.4%
18	Azerbaijan	4	0.4%
19	Ireland	4	0.4%
20	Ecuador	4	0.4%
21	Viet Nam	4	0.4%
22	Philippines	4	0.4%
23	United Kingdom	3	0.3%
24	Indonesia	2	0.2%
25	Belarus	2	0.2%
26	Switzerland	2	0.2%
27	South Africa	2	0.2%
28	Pakistan	2	0.2%
29	New Zealand	2	0.2%
30	Lebanon	2	0.2%
31	Mexico	1	0.1%
32	Thailand	1	0.1%
33	Turkey	1	0.1%
34	Belgium	1	0.1%
35	Denmark	1	0.1%
36	Costa Rica	1	0.1%
37	Italy	1	0.1%
38	Kenya	1	0.1%