Rank	Countries/Territories	Count	Percent
1	United States	503	42.4%
2	China	296	24.9%
3	Germany	92	7.8%
4	Russia	76	6.4%
5	India	49	4.1%
6	Japan	33	2.8%
7		21	1.8%
8	Ireland	16	1.3%
9	Korea, Republic of	13	1.1%
10	Australia	13	1.1%
11	France	9	0.8%
12	United Kingdom	8	0.7%
13	Hong Kong	7	0.6%
14	Israel	7	0.6%
15	Canada	6	0.5%
16	Portugal	6	0.5%
17	Viet Nam	4	0.3%
18	South Africa	4	0.3%
19	Argentina	4	0.3%
20	Mongolia	3	0.3%
21	Netherlands	3	0.3%
22	Singapore	2	0.2%
23	Cyprus	2	0.2%
24	Czech Republic	2	0.2%
25	Lebanon	2	0.2%
26	Egypt	1	0.1%
27	Finland	1	0.1%
28	Austria	1	0.1%
29	Spain	1	0.1%
30	Turkey	1	0.1%
31	Ukraine	1	0.1%