Rank	Countries/Territories	Count	Percent
1	United States	589	31.3%
2	China	564	30%
3	Japan	202	10.7%
4	Germany	148	7.9%
5	Singapore	58	3.1%
6	Canada	44	2.3%
7	Argentina	42	2.2%
8	Hungary	41	2.2%
9	Russia	30	1.6%
10	Netherlands	19	1%
11	France	18	1%
12	United Kingdom	17	0.9%
13	Cyprus	15	0.8%
14	Saudi Arabia	13	0.7%
15	Taiwan	10	0.5%
16	Switzerland	9	0.5%
17	Korea, Republic of	9	0.5%
18	Hong Kong	9	0.5%
19	Australia	6	0.3%
20	Italy	6	0.3%
21	Sweden	6	0.3%
22	Pakistan	5	0.3%
23	Iran, Islamic Republic of	5	0.3%
24	Ireland	2	0.1%
25	Bangladesh	2	0.1%
26	Denmark	2	0.1%
27	Finland	2	0.1%
28	Portugal	2	0.1%
29	Malaysia	2	0.1%
30	Spain	2	0.1%
31	Mongolia	1	0.1%
32	Belgium	1	0.1%
33	India	1	0.1%