Rank	Countries/Territories	Count	Percent
1	United States	391	37.2%
2	China	390	37.1%
3	Germany	99	9.4%
4		28	2.7%
5	Canada	18	1.7%
6	France	15	1.4%
7	Switzerland	15	1.4%
8	Japan	14	1.3%
9	Norway	13	1.2%
10	Netherlands	11	1%
11	Cyprus	8	0.8%
12	Australia	8	0.8%
13	India	6	0.6%
14	Singapore	6	0.6%
15	United Kingdom	5	0.5%
16	Taiwan	4	0.4%
17	Italy	3	0.3%
18	Korea, Republic of	3	0.3%
19	Argentina	3	0.3%
20	Colombia	2	0.2%
21	Malaysia	2	0.2%
22	Serbia	2	0.2%
23	Viet Nam	2	0.2%
24	Romania	1	0.1%
25	Russia	1	0.1%
26	Saudi Arabia	1	0.1%