Rank	Countries/Territories	Count	Percent
1	United States	442	46.5%
2	China	208	21.9%
3	Germany	162	17%
4	Singapore	36	3.8%
5	Canada	20	2.1%
6	Netherlands	16	1.7%
7	Korea, Republic of	12	1.3%
8	France	9	0.9%
9	Switzerland	9	0.9%
10	Ukraine	7	0.7%
11	Australia	7	0.7%
12	Cyprus	3	0.3%
13		2	0.2%
14	Argentina	2	0.2%
15	Mauritius	2	0.2%
16	Mongolia	2	0.2%
17	Taiwan	2	0.2%
18	Turkey	2	0.2%
19	Nigeria	1	0.1%
20	Russia	1	0.1%
21	Serbia	1	0.1%
22	Morocco	1	0.1%
23	India	1	0.1%
24	Italy	1	0.1%
25	Japan	1	0.1%
26	Bulgaria	1	0.1%