Table 4.

Productivity based on number of articles at country level.

	Productivity Based on No. of Articles						Most Cited Countries
Entry	Country	Articles	Freq	SCP	MCP	MCP_Ratio	Country	TC	AAC
1	USA	1185	27.6	913	272	0.2295	USA	55,528	46.86
2	CHINA	421	9.8	334	87	0.2067	UNITED KINGDOM	10,736	36.64
3	JAPAN	369	8.6	267	102	0.2764	NETHERLANDS	10,392	71.18
4	UNITED KINGDOM	293	6.8	193	100	0.3413	JAPAN	9689	26.26
5	GERMANY	197	4.6	153	44	0.2234	CHINA	5629	13.37
6	KOREA	165	3.9	151	14	0.0848	GERMANY	5319	27
7	NETHERLANDS	146	3.4	92	54	0.3699	FRANCE	4695	36.4
8	ITALY	131	3.1	103	28	0.2137	AUSTRALIA	4301	35.55
9	FRANCE	129	3	91	38	0.2946	SWEDEN	3342	32.76
10	AUSTRALIA	121	2.8	91	30	0.2479	ITALY	3025	23.09
11	BRAZIL	109	2.5	88	21	0.1927	KOREA	2456	14.88
12	SPAIN	105	2.5	82	23	0.219	FINLAND	2405	27.97
13	SWEDEN	102	2.4	58	44	0.4314	CANADA	2320	24.95
14	CANADA	93	2.2	72	21	0.2258	SPAIN	2061	19.63
15	FINLAND	86	2	72	14	0.1628	BRAZIL	1449	13.29
16	BELGIUM	56	1.3	30	26	0.4643	BELGIUM	1163	20.77
17	SWITZERLAND	37	0.8	23	14	0.3784	SWITZERLAND	1112	30.05
18	INDIA	35	0.8	21	14	0.4	NEW ZEALAND	1014	37.56
19	DENMARK	32	0.8	17	15	0.4688	DENMARK	806	25.19
20	THAILAND	32	0.8	13	19	0.5938	INDIA	703	20.09

SCP: single country publications, MCP: multiple country publications, TC: total citations, AAC: average article citations.