Table 2.

Top 30 countries ranked by their recruitment site counts.

Rank	Country	#Trial	# Sites	%Trial	Rank	Country	#Trials	# Sites	%Trial
1	United States	81148	681987	31.6%	16	Poland	3817	20383	1.5%
2	Canada	13084	49937	5.1%	17	Taiwan	3767	8130	1.5%
3	Germany	12222	92552	4.8%	18	Switzerland	3715	7585	1.4%
4	France	11370	81351	4.4%	19	Sweden	3706	10278	1.4%
5	United Kingdom	9760	38695	3.8%	20	Japan	3406	44942	1.3%
6	Italy	7253	37682	2.8%	21	Austria	3282	8538	1.3%
7	Spain	6760	36253	2.6%	22	Russian Federation	2862	20181	1.1%
8	Korea, Republic of	5794	17474	2.3%	23	Czech Republic	2662	12809	1.0%
9	Netherlands	5738	17276	2.2%	24	India	2539	11635	1.0%
10	China	5503	20013	2.1%	25	Norway	2431	5221	0.9%
11	Belgium	5496	19537	2.1%	26	Hungary	2417	11672	0.9%
12	Israel	4944	10622	1.9%	27	Mexico	2220	7973	0.9%
13	Denmark	4619	9329	1.8%	28	South Africa	1942	7879	0.8%
14	Australia	4399	18181	1.7%	29	Finland	1935	5115	0.8%
15	Brazil	4148	12519	0.016	30	Argentina	1822	9014	0.007