Rank	Countries/Territories	Count	Percent
1	United States	510	38.7%
2	China	433	32.9%
3	Germany	123	9.3%
4	France	43	3.3%
5	Canada	29	2.2%
6	Singapore	28	2.1%
7	Japan	21	1.6%
8	Taiwan	20	1.5%
9	India	20	1.5%
10	Netherlands	15	1.1%
11	Hungary	11	0.8%
12	Russia	9	0.7%
13	United Kingdom	8	0.6%
14	Australia	6	0.5%
15	Cyprus	4	0.3%
16	Hong Kong	4	0.3%
17	Norway	4	0.3%
18	Korea, Republic of	4	0.3%
19	Turkey	2	0.2%
20	Ukraine	2	0.2%
21	Viet Nam	2	0.2%
22	Indonesia	2	0.2%
23	Iran, Islamic Republic of	2	0.2%
24	Ireland	2	0.2%
25	Czech Republic	2	0.2%
26	Finland	2	0.2%
27	Bangladesh	2	0.2%
28	Brazil	2	0.2%
29	Argentina	2	0.2%
30	Lithuania	1	0.1%
31	Mongolia	1	0.1%
32	Romania	1	0.1%
33	Switzerland	1	0.1%