Rank	Countries/Territories	Count	Percent
1	United States	420	45.9%
2	China	258	28.2%
3	Germany	73	8%
4	Japan	23	2.5%
5	France	18	2%
6	Singapore	15	1.6%
7	Ukraine	14	1.5%
8	Switzerland	10	1.1%
9	India	10	1.1%
10	Netherlands	10	1.1%
11	Italy	7	0.8%
12	Australia	6	0.7%
13	Canada	6	0.7%
14	Hong Kong	4	0.4%
15	Indonesia	4	0.4%
16	Korea, Republic of	4	0.4%
17	South Africa	4	0.4%
18	United Kingdom	3	0.3%
19	Poland	3	0.3%
20	Cyprus	3	0.3%
21	Argentina	3	0.3%
22	Ireland	2	0.2%
23	Nigeria	2	0.2%
24	Norway	2	0.2%
25	Taiwan	2	0.2%
26	Thailand	2	0.2%
27	Romania	2	0.2%
28	Turkey	1	0.1%
29	Portugal	1	0.1%
30	Malaysia	1	0.1%
31	Pakistan	1	0.1%
32	Brazil	1	0.1%