Rank	Countries/Territories	Count	Percent
1	United States	622	47.2%
2	China	319	24.2%
3	Germany	95	7.2%
4	France	63	4.8%
5	Russia	38	2.9%
6	India	37	2.8%
7	Korea, Republic of	33	2.5%
8	Canada	15	1.1%
9	Japan	13	1%
10	Singapore	13	1%
11	Australia	11	0.8%
12	Cyprus	9	0.7%
13	Netherlands	8	0.6%
14	Ukraine	6	0.5%
15	Bulgaria	6	0.5%
16	Iran, Islamic Republic of	6	0.5%
17	Lithuania	5	0.4%
18	Ireland	4	0.3%
19	Argentina	4	0.3%
20	Mongolia	2	0.2%
21	Turkey	2	0.2%
22	Norway	1	0.1%
23	Philippines	1	0.1%
24	Portugal	1	0.1%
25	Greece	1	0.1%
26	Hungary	1	0.1%
27	Mauritius	1	0.1%
28	Latvia	1	0.1%