Rank	Countries/Territories	Count	Percent
1	United States	613	41.4%
2	China	443	29.9%
3	Germany	202	13.6%
4	Canada	36	2.4%
5	Japan	34	2.3%
6	France	26	1.8%
7	Netherlands	21	1.4%
8	Australia	16	1.1%
9	Taiwan	10	0.7%
10	Ireland	8	0.5%
11	Singapore	8	0.5%
12	Cyprus	8	0.5%
13	Hong Kong	8	0.5%
14	Korea, Republic of	7	0.5%
15	Ukraine	5	0.3%
16	Slovenia	4	0.3%
17	Turkey	3	0.2%
18	Latvia	3	0.2%
19	Indonesia	3	0.2%
20	Bangladesh	3	0.2%
21	Bulgaria	2	0.1%
22	Qatar	2	0.1%
23	United Kingdom	2	0.1%
24	South Africa	2	0.1%
25	Switzerland	2	0.1%
26	Luxembourg	2	0.1%
27	Mongolia	1	0.1%
28	Poland	1	0.1%
29	Romania	1	0.1%
30	India	1	0.1%
31	Iran, Islamic Republic of	1	0.1%
32	Kenya	1	0.1%
33	Lebanon	1	0.1%
34	Lithuania	1	0.1%