Table 5.

Most cited countries.

Ranking	Country	TC	Country	ACP
1	USA	11,289	COLOMBIA	62.33
2	UNITED KINGDOM	7929	KUWAIT	55
3	CANADA	3612	NIGERIA	46.5
4	AUSTRALIA	3587	BELGIUM	34.36
5	SPAIN	2689	SWITZERLAND	30.95
6	PORTUGAL	2446	MALAYSIA	30
7	GERMANY	2105	SAUDI ARABIA	28
8	NETHERLANDS	1472	QATAR	27.46
9	SWITZERLAND	1362	NETHERLANDS	25.38
10	BRAZIL	1301	CANADA	25.08

TC: total citations; ACP: average citations per year.