Rank	Countries/Territories	Count	Percent
1	China	306	36.9%
2	United States	242	29.2%
3	Germany	78	9.4%
4	Switzerland	40	4.8%
5	Japan	37	4.5%
6	France	30	3.6%
7	India	19	2.3%
8	Ukraine	13	1.6%
9	Singapore	7	0.8%
10	Korea, Republic of	7	0.8%
11	Australia	7	0.8%
12	Canada	6	0.7%
13	Netherlands	5	0.6%
14	Cyprus	3	0.4%
15	Egypt	3	0.4%
16	Ireland	3	0.4%
17	Israel	2	0.2%
18	Mongolia	2	0.2%
19	Bangladesh	2	0.2%
20	Brazil	2	0.2%
21	Philippines	2	0.2%
22	South Africa	2	0.2%
23	Namibia	2	0.2%
24	Sweden	1	0.1%
25	Poland	1	0.1%
26	Romania	1	0.1%
27	Russia	1	0.1%
28	Turkey	1	0.1%
29	Austria	1	0.1%
30	Argentina	1	0.1%
31	Morocco	1	0.1%
32	Lithuania	1	0.1%