Rank	Countries/Territories	Count	Percent
1	United States	618	49.6%
2	China	315	25.3%
3	Germany	105	8.4%
4	France	30	2.4%
5	Australia	19	1.5%
6	Canada	18	1.4%
7	Japan	17	1.4%
8	Norway	16	1.3%
9	Switzerland	15	1.2%
10	Netherlands	12	1%
11	Cyprus	9	0.7%
12	Russia	8	0.6%
13	Ireland	7	0.6%
14	Hong Kong	7	0.6%
15	India	6	0.5%
16	Singapore	6	0.5%
17	Korea, Republic of	5	0.4%
18	Spain	4	0.3%
19	Ukraine	3	0.2%
20	United Kingdom	3	0.2%
21	Malaysia	3	0.2%
22	Mexico	2	0.2%
23	Mongolia	2	0.2%
24	Argentina	2	0.2%
25	Bangladesh	2	0.2%
26	Taiwan	2	0.2%
27	Turkey	2	0.2%
28	Iran, Islamic Republic of	2	0.2%
29	Sweden	1	0.1%
30	South Africa	1	0.1%
31	Bulgaria	1	0.1%
32	Chile	1	0.1%
33	Denmark	1	0.1%
34	Indonesia	1	0.1%