Rank	Countries/Territories	Count	Percent
1	United States	508	39.1%
2	China	301	23.2%
3	Germany	157	12.1%
4		50	3.8%
5	Canada	42	3.2%
6	France	37	2.8%
7	Japan	29	2.2%
8	India	20	1.5%
9	Cyprus	18	1.4%
10	Netherlands	16	1.2%
11	United Kingdom	16	1.2%
12	Singapore	13	1%
13	Taiwan	10	0.8%
14	Korea, Republic of	8	0.6%
15	Greece	8	0.6%
16	Italy	7	0.5%
17	Australia	7	0.5%
18	Iran, Islamic Republic of	6	0.5%
19	Ireland	6	0.5%
20	Switzerland	6	0.5%
21	Sweden	5	0.4%
22	Norway	4	0.3%
23	Latvia	3	0.2%
24	Mongolia	3	0.2%
25	Hong Kong	3	0.2%
26	Indonesia	3	0.2%
27	Egypt	3	0.2%
28	Algeria	2	0.2%
29	Argentina	2	0.2%
30	Russia	2	0.2%
31	Ukraine	2	0.2%
32	Pakistan	1	0.1%
33	Bangladesh	1	0.1%
34	Denmark	1	0.1%