Rank	Countries/Territories	Count	Percent
1	United States	571	42.3%
2	China	412	30.5%
3	Germany	151	11.2%
4	India	52	3.9%
5	France	47	3.5%
6	Japan	26	1.9%
7	Netherlands	20	1.5%
8	Korea, Republic of	9	0.7%
9	Ireland	7	0.5%
10	Singapore	6	0.4%
11	Australia	5	0.4%
12	Canada	4	0.3%
13	Hong Kong	4	0.3%
14	Taiwan	4	0.3%
15	Ukraine	3	0.2%
16	United Kingdom	3	0.2%
17	Russia	3	0.2%
18	Lebanon	3	0.2%
19	Iran, Islamic Republic of	3	0.2%
20	Indonesia	2	0.1%
21	Cyprus	2	0.1%
22	Czech Republic	2	0.1%
23	Bulgaria	2	0.1%
24	Viet Nam	2	0.1%
25	Sweden	2	0.1%
26	Philippines	2	0.1%
27	Peru	1	0.1%
28	Argentina	1	0.1%
29	Mongolia	1	0.1%