Rank	Countries/Territories	Count	Percent
1	United States	426	41.4%
2	China	249	24.2%
3	Germany	89	8.6%
4	Russia	76	7.4%
5	India	41	4%
6	Japan	32	3.1%
7	Ireland	16	1.6%
8	Korea, Republic of	13	1.3%
9	Australia	11	1.1%
10	France	9	0.9%
11	United Kingdom	8	0.8%
12	Israel	7	0.7%
13	Canada	6	0.6%
14	Hong Kong	6	0.6%
15	Portugal	6	0.6%
16	Viet Nam	4	0.4%
17	South Africa	4	0.4%
18		4	0.4%
19	Argentina	4	0.4%
20	Mongolia	3	0.3%
21	Singapore	2	0.2%
22	Cyprus	2	0.2%
23	Czech Republic	2	0.2%
24	Lebanon	2	0.2%
25	Egypt	1	0.1%
26	Finland	1	0.1%
27	Austria	1	0.1%
28	Netherlands	1	0.1%
29	Spain	1	0.1%
30	Turkey	1	0.1%
31	Ukraine	1	0.1%