Rank	Countries/Territories	Count	Percent
1	United States	423	34.7%
2	China	267	21.9%
3	Germany	131	10.7%
4	India	43	3.5%
5	France	37	3%
6	Singapore	35	2.9%
7	Canada	31	2.5%
8	Japan	25	2.1%
9	Taiwan	19	1.6%
10	Netherlands	19	1.6%
11	Korea, Republic of	18	1.5%
12	Hong Kong	18	1.5%
13	Switzerland	18	1.5%
14	United Kingdom	18	1.5%
15		17	1.4%
16	Norway	15	1.2%
17	Sweden	12	1%
18	Italy	8	0.7%
19	Belgium	7	0.6%
20	Mexico	7	0.6%
21	Iran, Islamic Republic of	6	0.5%
22	Tunisia	6	0.5%
23	Russia	5	0.4%
24	Cyprus	5	0.4%
25	Spain	4	0.3%
26	Turkey	3	0.2%
27	Australia	3	0.2%
28	Morocco	3	0.2%
29	Greece	2	0.2%
30	Slovenia	2	0.2%
31	Ireland	2	0.2%
32	Portugal	2	0.2%
33	Romania	2	0.2%
34	Viet Nam	2	0.2%
35	United Arab Emirates	1	0.1%
36	Bangladesh	1	0.1%
37	Egypt	1	0.1%
38	Congo, The Democratic Republic of The	1	0.1%