Rank	Countries/Territories	Count	Percent
1	United States	259	33.6%
2	China	171	22.2%
3	Germany	82	10.6%
4	India	31	4%
5	Canada	30	3.9%
6	Netherlands	27	3.5%
7	Ireland	21	2.7%
8	Australia	18	2.3%
9	Korea, Republic of	18	2.3%
10	Russia	16	2.1%
11	Turkey	13	1.7%
12	France	10	1.3%
13	Pakistan	9	1.2%
14	United Kingdom	7	0.9%
15	Thailand	6	0.8%
16	Japan	6	0.8%
17	Cyprus	6	0.8%
18	Egypt	4	0.5%
19	Indonesia	4	0.5%
20	Iran, Islamic Republic of	3	0.4%
21	Hong Kong	3	0.4%
22	Romania	3	0.4%
23	Singapore	3	0.4%
24	South Africa	2	0.3%
25	Mongolia	2	0.3%
26	Nepal	2	0.3%
27	Switzerland	2	0.3%
28	Taiwan	2	0.3%
29	Kenya	2	0.3%
30	Estonia	2	0.3%
31	Austria	2	0.3%
32	Bulgaria	1	0.1%
33	Armenia	1	0.1%
34	Georgia	1	0.1%
35	Lao People's Democratic Republic	1	0.1%
36	Sweden	1	0.1%