Rank	Countries/Territories	Count	Percent
1	United States	450	46.4%
2	China	249	25.7%
3	Germany	109	11.2%
4	Czech Republic	28	2.9%
5	France	24	2.5%
6	Japan	20	2.1%
7	Canada	10	1%
8	Argentina	9	0.9%
9	Netherlands	9	0.9%
10	Korea, Republic of	7	0.7%
11	Cyprus	6	0.6%
12	Australia	5	0.5%
13	Singapore	5	0.5%
14	United Kingdom	5	0.5%
15	Egypt	4	0.4%
16	Italy	3	0.3%
17	Greece	3	0.3%
18	India	3	0.3%
19	Iran, Islamic Republic of	2	0.2%
20	Algeria	2	0.2%
21	Saudi Arabia	2	0.2%
22	Sweden	2	0.2%
23	Lithuania	2	0.2%
24	Nigeria	2	0.2%
25	Norway	1	0.1%
26	Romania	1	0.1%
27	Russia	1	0.1%
28	Malaysia	1	0.1%
29	Mongolia	1	0.1%
30	Brazil	1	0.1%
31	Hong Kong	1	0.1%
32	Lebanon	1	0.1%