Rank	Countries/Territories	Count	Percent
1	United States	510	39.8%
2	China	347	27%
3	Germany	159	12.4%
4	France	53	4.1%
5	Brazil	20	1.6%
6	Canada	19	1.5%
7	Japan	17	1.3%
8	Korea, Republic of	15	1.2%
9	Russia	14	1.1%
10	Switzerland	13	1%
11	Cyprus	12	0.9%
12	India	10	0.8%
13	Netherlands	8	0.6%
14	Portugal	7	0.5%
15	Singapore	7	0.5%
16	Taiwan	6	0.5%
17	New Zealand	6	0.5%
18	Australia	6	0.5%
19	Colombia	5	0.4%
20	United Kingdom	5	0.4%
21	Mexico	4	0.3%
22	Kenya	4	0.3%
23	Chile	4	0.3%
24	Argentina	4	0.3%
25	Iran, Islamic Republic of	3	0.2%
26	Hong Kong	3	0.2%
27	United Arab Emirates	3	0.2%
28	Spain	2	0.2%
29	Sweden	2	0.2%
30	Kyrgyzstan	2	0.2%
31	Lithuania	2	0.2%
32	Qatar	2	0.2%
33	Ecuador	2	0.2%
34	Jordan	2	0.2%
35	Belgium	2	0.2%
36	Albania	1	0.1%
37	Ireland	1	0.1%
38	Saudi Arabia	1	0.1%