Rank	Countries/Territories	Count	Percent
1	United States	513	43.8%
2	China	339	29%
3	Germany	161	13.8%
4	Canada	23	2%
5	France	21	1.8%
6	Japan	18	1.5%
7	Switzerland	15	1.3%
8	Korea, Republic of	14	1.2%
9	Australia	12	1%
10	Hong Kong	8	0.7%
11	Netherlands	8	0.7%
12	Cyprus	8	0.7%
13	Norway	6	0.5%
14	Bangladesh	5	0.4%
15	India	4	0.3%
16	Malaysia	4	0.3%
17	Taiwan	3	0.3%
18	Russia	2	0.2%
19	Singapore	2	0.2%
20	Mongolia	1	0.1%
21	Israel	1	0.1%
22	Argentina	1	0.1%
23	Turkey	1	0.1%