Rank	Countries/Territories	Count	Percent
1	United States	437	44.9%
2	China	209	21.5%
3	Germany	110	11.3%
4	Netherlands	26	2.7%
5	Canada	24	2.5%
6	France	23	2.4%
7	India	15	1.5%
8	Switzerland	13	1.3%
9	Singapore	12	1.2%
10	Japan	12	1.2%
11	Australia	10	1%
12	United Kingdom	8	0.8%
13	Nigeria	8	0.8%
14	Ireland	7	0.7%
15	Korea, Republic of	6	0.6%
16	Cyprus	6	0.6%
17	Ethiopia	5	0.5%
18	Italy	5	0.5%
19	Iran, Islamic Republic of	4	0.4%
20	Poland	4	0.4%
21	Sweden	4	0.4%
22	Ukraine	4	0.4%
23	Philippines	3	0.3%
24		3	0.3%
25	Bulgaria	2	0.2%
26	Egypt	2	0.2%
27	Jordan	2	0.2%
28	Russia	2	0.2%
29	Mauritius	2	0.2%
30	Mongolia	1	0.1%
31	Pakistan	1	0.1%
32	Kenya	1	0.1%
33	Malaysia	1	0.1%
34	Brazil	1	0.1%