Rank	Countries/Territories	Count	Percent
1	United States	580	40.6%
2	China	489	34.2%
3	Germany	123	8.6%
4	France	46	3.2%
5	Canada	31	2.2%
6	Sweden	19	1.3%
7	India	18	1.3%
8	Japan	13	0.9%
9	Netherlands	13	0.9%
10	Russia	12	0.8%
11	Singapore	11	0.8%
12	Cyprus	10	0.7%
13	Hong Kong	9	0.6%
14	Norway	9	0.6%
15	Turkey	6	0.4%
16	Ireland	6	0.4%
17	United Kingdom	5	0.3%
18	Italy	4	0.3%
19	Indonesia	3	0.2%
20	Iran, Islamic Republic of	3	0.2%
21	Argentina	3	0.2%
22	Australia	3	0.2%
23	Belgium	2	0.1%
24	Mexico	2	0.1%
25	Poland	2	0.1%
26	Romania	1	0.1%
27	Spain	1	0.1%
28	Serbia	1	0.1%
29	Mongolia	1	0.1%
30	Korea, Republic of	1	0.1%
31	Azerbaijan	1	0.1%
32	Egypt	1	0.1%