Rank	Countries/Territories	Count	Percent
1	United States	220	34.5%
2	China	195	30.6%
3	Germany	46	7.2%
4	Japan	29	4.6%
5	United Kingdom	23	3.6%
6	Singapore	13	2%
7	Ireland	11	1.7%
8	Australia	10	1.6%
9	Brazil	9	1.4%
10	India	9	1.4%
11	Mongolia	7	1.1%
12	Netherlands	6	0.9%
13	France	6	0.9%
14	Romania	6	0.9%
15	Saudi Arabia	6	0.9%
16	Taiwan	5	0.8%
17	Ukraine	4	0.6%
18	South Africa	3	0.5%
19	Russia	3	0.5%
20	Viet Nam	3	0.5%
21	Argentina	3	0.5%
22	Canada	3	0.5%
23	Cyprus	3	0.5%
24	Norway	3	0.5%
25	Indonesia	2	0.3%
26	Korea, Republic of	2	0.3%
27	Philippines	2	0.3%
28	Lithuania	1	0.2%
29	Iran, Islamic Republic of	1	0.2%
30	Oman	1	0.2%
31	Fiji	1	0.2%
32	Greece	1	0.2%