Rank	Countries/Territories	Count	Percent
1	United States	552	37.7%
2	China	482	32.9%
3	Germany	91	6.2%
4	Japan	50	3.4%
5	United Kingdom	35	2.4%
6	Canada	34	2.3%
7	Latvia	28	1.9%
8	Netherlands	22	1.5%
9	Singapore	19	1.3%
10	France	18	1.2%
11		18	1.2%
12	Sweden	13	0.9%
13	Cyprus	12	0.8%
14	Korea, Republic of	12	0.8%
15	Hong Kong	10	0.7%
16	Pakistan	9	0.6%
17	Switzerland	8	0.5%
18	Australia	8	0.5%
19	Italy	7	0.5%
20	Russia	5	0.3%
21	Taiwan	5	0.3%
22	Turkey	4	0.3%
23	Norway	4	0.3%
24	Austria	4	0.3%
25	Denmark	2	0.1%
26	India	2	0.1%
27	Iran, Islamic Republic of	2	0.1%
28	Ukraine	2	0.1%
29	Mongolia	1	0.1%
30	Romania	1	0.1%
31	Egypt	1	0.1%
32	Finland	1	0.1%
33	Argentina	1	0.1%