Rank	Countries/Territories	Count	Percent
1	United States	418	42.4%
2	China	198	20.1%
3	Germany	139	14.1%
4	Japan	56	5.7%
5	Canada	22	2.2%
6	France	22	2.2%
7	Singapore	16	1.6%
8	Hungary	12	1.2%
9	India	10	1%
10	Netherlands	10	1%
11	United Kingdom	9	0.9%
12	Taiwan	7	0.7%
13	Macao	7	0.7%
14	Spain	7	0.7%
15	Iran, Islamic Republic of	6	0.6%
16	Korea, Republic of	6	0.6%
17	Austria	6	0.6%
18	Australia	5	0.5%
19	Sweden	4	0.4%
20	Algeria	3	0.3%
21	Cyprus	3	0.3%
22	Hong Kong	3	0.3%
23	Ireland	2	0.2%
24	Israel	2	0.2%
25	Italy	2	0.2%
26	Switzerland	2	0.2%
27	Malaysia	2	0.2%
28	Turkey	2	0.2%
29	Ukraine	1	0.1%
30	Mongolia	1	0.1%
31	Poland	1	0.1%
32	Russia	1	0.1%
33	Belgium	1	0.1%
34	Brazil	1	0.1%