Rank	Countries/Territories	Count	Percent
1	United States	434	44.5%
2	China	225	23.1%
3	Germany	66	6.8%
4	Australia	28	2.9%
5	France	19	1.9%
6	Korea, Republic of	18	1.8%
7	Singapore	16	1.6%
8	Japan	16	1.6%
9	Netherlands	16	1.6%
10	United Kingdom	15	1.5%
11	Canada	14	1.4%
12	India	13	1.3%
13	Taiwan	12	1.2%
14	Brazil	9	0.9%
15	Italy	7	0.7%
16	Ireland	6	0.6%
17	Ukraine	6	0.6%
18	Denmark	6	0.6%
19	Algeria	5	0.5%
20	Cyprus	4	0.4%
21	Greece	4	0.4%
22	Hong Kong	4	0.4%
23	Spain	4	0.4%
24	Hungary	3	0.3%
25	Indonesia	3	0.3%
26	Iran, Islamic Republic of	2	0.2%
27	Egypt	2	0.2%
28	Colombia	2	0.2%
29	Chile	2	0.2%
30	Mongolia	2	0.2%
31	United Arab Emirates	2	0.2%
32	Nigeria	2	0.2%
33	Norway	2	0.2%
34	Russia	2	0.2%
35	Viet Nam	2	0.2%
36	South Africa	1	0.1%
37	Malaysia	1	0.1%
38	Mexico	1	0.1%