Rank	Countries/Territories	Count	Percent
1	United States	164	31.6%
2	China	151	29.1%
3	Germany	79	15.2%
4	Japan	18	3.5%
5	Ireland	12	2.3%
6	Indonesia	11	2.1%
7	Russia	10	1.9%
8	India	8	1.5%
9	Canada	7	1.3%
10	Egypt	6	1.2%
11	Iran, Islamic Republic of	6	1.2%
12	Netherlands	6	1.2%
13	Saudi Arabia	4	0.8%
14	Turkey	4	0.8%
15	United Kingdom	3	0.6%
16	Romania	3	0.6%
17	Singapore	3	0.6%
18	France	3	0.6%
19	Australia	3	0.6%
20	Ethiopia	2	0.4%
21	Cyprus	2	0.4%
22	Hong Kong	2	0.4%
23	Italy	2	0.4%
24	Slovakia	2	0.4%
25	Spain	2	0.4%
26	Sweden	1	0.2%
27	Norway	1	0.2%
28	Peru	1	0.2%
29	Moldova, Republic of	1	0.2%
30	Brazil	1	0.2%
31	Argentina	1	0.2%