Rank	Countries/Territories	Count	Percent
1	United States	452	32.7%
2	China	338	24.4%
3	Japan	195	14.1%
4	Germany	103	7.4%
5	Singapore	68	4.9%
6	Ukraine	37	2.7%
7	India	21	1.5%
8	Korea, Republic of	18	1.3%
9	Canada	17	1.2%
10	Cyprus	15	1.1%
11	France	14	1%
12	Russia	14	1%
13	Italy	14	1%
14	Switzerland	11	0.8%
15	Netherlands	9	0.7%
16	Australia	8	0.6%
17	Poland	7	0.5%
18	United Kingdom	5	0.4%
19	Lithuania	5	0.4%
20	Iran, Islamic Republic of	5	0.4%
21	Spain	4	0.3%
22	Romania	3	0.2%
23	Morocco	3	0.2%
24	Brazil	3	0.2%
25	Egypt	3	0.2%
26	Argentina	2	0.1%
27	Mongolia	2	0.1%
28	Sweden	2	0.1%
29	Taiwan	1	0.1%
30	South Africa	1	0.1%
31	Denmark	1	0.1%
32	Ireland	1	0.1%
33	Mexico	1	0.1%