Rank	Countries/Territories	Count	Percent
1	United States	309	33.8%
2	China	274	30%
3	Germany	83	9.1%
4	Japan	69	7.6%
5	Singapore	32	3.5%
6	Australia	25	2.7%
7	Denmark	20	2.2%
8	India	13	1.4%
9	Netherlands	13	1.4%
10	Iran, Islamic Republic of	10	1.1%
11	Cyprus	8	0.9%
12	Sweden	8	0.9%
13	United Kingdom	8	0.9%
14	Korea, Republic of	7	0.8%
15	Ukraine	4	0.4%
16	South Africa	3	0.3%
17	Argentina	3	0.3%
18	France	3	0.3%
19	Kenya	2	0.2%
20	Mauritius	2	0.2%
21	Nigeria	2	0.2%
22	Pakistan	2	0.2%
23	Russia	2	0.2%
24	New Zealand	1	0.1%
25	Moldova, Republic of	1	0.1%
26	Malaysia	1	0.1%
27	Spain	1	0.1%
28	Switzerland	1	0.1%
29	Taiwan	1	0.1%
30	Georgia	1	0.1%
31	Ireland	1	0.1%
32	Algeria	1	0.1%
33	Canada	1	0.1%
34	Ethiopia	1	0.1%