Rank	Countries/Territories	Count	Percent
1	United States	479	45.5%
2	China	315	29.9%
3	Germany	105	10%
4	Japan	26	2.5%
5	Canada	23	2.2%
6	Russia	19	1.8%
7	South Africa	19	1.8%
8	Netherlands	15	1.4%
9	France	10	0.9%
10	Singapore	8	0.8%
11	Cyprus	7	0.7%
12	Egypt	5	0.5%
13	United Kingdom	4	0.4%
14	Taiwan	3	0.3%
15	Hong Kong	3	0.3%
16	Iran, Islamic Republic of	3	0.3%
17	Philippines	2	0.2%
18	Saudi Arabia	2	0.2%
19	Turkey	2	0.2%
20	Sweden	1	0.1%
21	India	1	0.1%
22	Mexico	1	0.1%