Rank	Countries/Territories	Count	Percent
1	United States	337	37.7%
2	China	248	27.7%
3	Germany	105	11.7%
4	Spain	20	2.2%
5	India	19	2.1%
6	Netherlands	15	1.7%
7	Japan	14	1.6%
8	Ireland	10	1.1%
9	Israel	10	1.1%
10	France	10	1.1%
11	United Kingdom	9	1%
12	Singapore	8	0.9%
13	Iran, Islamic Republic of	7	0.8%
14	Hong Kong	7	0.8%
15	Canada	7	0.8%
16	Australia	6	0.7%
17	Korea, Republic of	6	0.7%
18	Russia	5	0.6%
19	Egypt	5	0.6%
20	Indonesia	4	0.4%
21	Taiwan	4	0.4%
22	Finland	3	0.3%
23	Austria	3	0.3%
24	Afghanistan	3	0.3%
25	Slovakia	3	0.3%
26	Mexico	3	0.3%
27	Kazakhstan	2	0.2%
28	Iraq	2	0.2%
29	Nigeria	2	0.2%
30	Argentina	2	0.2%
31	Cyprus	2	0.2%
32	Viet Nam	2	0.2%
33	Uzbekistan	1	0.1%
34	Uganda	1	0.1%
35	Colombia	1	0.1%
36	Bangladesh	1	0.1%
37	Brazil	1	0.1%
38	Norway	1	0.1%
39	Pakistan	1	0.1%
40	Philippines	1	0.1%
41	Romania	1	0.1%
42	Saudi Arabia	1	0.1%
43	Mongolia	1	0.1%