Rank	Countries/Territories	Count	Percent
1	United States	431	41.5%
2	China	302	29.1%
3	Germany	103	9.9%
4	Japan	53	5.1%
5	France	22	2.1%
6	Hungary	18	1.7%
7	Singapore	14	1.3%
8	Nepal	11	1.1%
9	Australia	9	0.9%
10	Cyprus	8	0.8%
11	Argentina	7	0.7%
12	India	7	0.7%
13	Canada	6	0.6%
14	Korea, Republic of	5	0.5%
15	Netherlands	5	0.5%
16	United Kingdom	4	0.4%
17	Belgium	4	0.4%
18	Greece	3	0.3%
19	Hong Kong	2	0.2%
20	Mongolia	2	0.2%
21	Norway	2	0.2%
22	Russia	2	0.2%
23	Saudi Arabia	2	0.2%
24	Slovenia	2	0.2%
25	Spain	2	0.2%
26	Sweden	2	0.2%
27	Taiwan	2	0.2%
28	Ukraine	2	0.2%
29	United Arab Emirates	2	0.2%
30	Iran, Islamic Republic of	1	0.1%
31	Israel	1	0.1%
32	Egypt	1	0.1%
33	Georgia	1	0.1%