Rank	Countries/Territories	Count	Percent
1	United States	161	33.1%
2	China	127	26.1%
3	Germany	64	13.1%
4	India	21	4.3%
5	Singapore	11	2.3%
6	Switzerland	10	2.1%
7	Slovakia	9	1.8%
8	Netherlands	9	1.8%
9	France	9	1.8%
10	Ireland	7	1.4%
11	Japan	7	1.4%
12	Russia	7	1.4%
13	Malaysia	6	1.2%
14	Canada	4	0.8%
15	Cyprus	4	0.8%
16	Philippines	4	0.8%
17	Egypt	3	0.6%
18	Estonia	3	0.6%
19	Austria	2	0.4%
20	Israel	2	0.4%
21	Oman	2	0.4%
22	Pakistan	2	0.4%
23	Peru	2	0.4%
24	South Africa	2	0.4%
25	Spain	1	0.2%
26	Nigeria	1	0.2%
27	Norway	1	0.2%
28	Portugal	1	0.2%
29	United Kingdom	1	0.2%
30	Viet Nam	1	0.2%
31	Mongolia	1	0.2%
32	Korea, Republic of	1	0.2%
33	Australia	1	0.2%