Rank	Countries/Territories	Count	Percent
1	United States	175	27%
2	China	166	25.6%
3	Germany	43	6.6%
4	Russia	22	3.4%
5	Greece	19	2.9%
6	United Kingdom	19	2.9%
7	India	15	2.3%
8	Japan	15	2.3%
9	Netherlands	13	2%
10		13	2%
11	Korea, Republic of	12	1.9%
12	Singapore	12	1.9%
13	New Zealand	11	1.7%
14	Canada	11	1.7%
15	Ireland	9	1.4%
16	Thailand	9	1.4%
17	Viet Nam	9	1.4%
18	Philippines	8	1.2%
19	Taiwan	7	1.1%
20	Italy	5	0.8%
21	Mexico	5	0.8%
22	Australia	5	0.8%
23	Indonesia	4	0.6%
24	South Africa	4	0.6%
25	Romania	4	0.6%
26	Switzerland	3	0.5%
27	Oman	3	0.5%
28	Argentina	3	0.5%
29	Turkey	3	0.5%
30	El Salvador	2	0.3%
31	France	2	0.3%
32	Georgia	2	0.3%
33	Brazil	2	0.3%
34	Hong Kong	2	0.3%
35	Norway	2	0.3%
36	Sri Lanka	2	0.3%
37	Poland	2	0.3%
38	Saudi Arabia	1	0.2%
39	Peru	1	0.2%
40	Hungary	1	0.2%
41	Austria	1	0.2%
42	United Arab Emirates	1	0.2%