50 Journals with highest impact factor

Fields: Biochemical Research Methods, Biochemistry and Molecular Biology, Biology, Biophysics, Biotechnology and applied Microbiology
Years: 2000-2004
Region: World

Country Average # Authors +/- % of Papers w/ 3 or more Authors % of Papers w/ 4 or more Authors % of Papers w/ 5 or more Authors # Papers

India 4.149 0.116 0.77 0.55 0.32 435

Poland 4.497 0.282 0.81 0.62 0.42 169

New Zealand 4.555 0.308 0.83 0.64 0.47 128

Argentina 4.669 0.499 0.83 0.68 0.46 133

Ireland 4.689 0.539 0.76 0.59 0.45 167

Singapore 4.713 0.251 0.84 0.67 0.44 160

Greece 4.721 0.434 0.79 0.67 0.51 122

Czech Republic 4.777 0.289 0.82 0.67 0.54 121

USA 4.854 0.114 0.82 0.65 0.48 34522

UK 4.958 0.227 0.80 0.65 0.50 5472

Canada 4.984 0.121 0.84 0.67 0.50 3016

Sweden 5.047 0.250 0.85 0.69 0.52 1156

Israel 5.062 0.217 0.85 0.66 0.51 841

Mexico 5.065 0.317 0.87 0.70 0.50 108

Norway 5.171 0.367 0.86 0.74 0.60 210

Switzerland 5.203 0.130 0.87 0.72 0.56 1269

Denmark 5.331 0.310 0.89 0.75 0.57 493

Spain 5.395 0.154 0.92 0.78 0.60 1337

Taiwan 5.473 0.232 0.91 0.79 0.63 243

Australia 5.513 0.298 0.88 0.74 0.59 1098

Germany 5.560 0.178 0.89 0.77 0.61 5121

Brazil 5.566 0.302 0.89 0.78 0.62 212

Russia 5.657 0.250 0.92 0.81 0.63 233

Austria 5.698 0.204 0.90 0.81 0.66 470

Hungary 5.716 0.396 0.91 0.78 0.67 95

France 5.934 0.257 0.93 0.82 0.68 4173

Netherlands 5.983 0.188 0.93 0.83 0.70 1100

China 5.983 0.185 0.91 0.80 0.65 596

Finland 6.025 0.362 0.91 0.79 0.64 435

Portugal 6.228 0.374 0.92 0.83 0.69 101

Japan 6.379 0.217 0.92 0.84 0.70 5372

Belgium 6.571 0.244 0.94 0.87 0.74 585

Italy 6.662 0.336 0.94 0.87 0.77 1708

Korea 6.731 0.287 0.96 0.88 0.77 841

Country	Average # Authors	+/-	% of Papers w/ 3 or more Authors	% of Papers w/ 4 or more Authors	% of Papers w/ 5 or more Authors	# Papers
India	4.149	0.116	0.77	0.55	0.32	435
Poland	4.497	0.282	0.81	0.62	0.42	169
New Zealand	4.555	0.308	0.83	0.64	0.47	128
Argentina	4.669	0.499	0.83	0.68	0.46	133
Ireland	4.689	0.539	0.76	0.59	0.45	167
Singapore	4.713	0.251	0.84	0.67	0.44	160
Greece	4.721	0.434	0.79	0.67	0.51	122
Czech Republic	4.777	0.289	0.82	0.67	0.54	121
USA	4.854	0.114	0.82	0.65	0.48	34522
UK	4.958	0.227	0.80	0.65	0.50	5472
Canada	4.984	0.121	0.84	0.67	0.50	3016
Sweden	5.047	0.250	0.85	0.69	0.52	1156
Israel	5.062	0.217	0.85	0.66	0.51	841
Mexico	5.065	0.317	0.87	0.70	0.50	108
Norway	5.171	0.367	0.86	0.74	0.60	210
Switzerland	5.203	0.130	0.87	0.72	0.56	1269
Denmark	5.331	0.310	0.89	0.75	0.57	493
Spain	5.395	0.154	0.92	0.78	0.60	1337
Taiwan	5.473	0.232	0.91	0.79	0.63	243
Australia	5.513	0.298	0.88	0.74	0.59	1098
Germany	5.560	0.178	0.89	0.77	0.61	5121
Brazil	5.566	0.302	0.89	0.78	0.62	212
Russia	5.657	0.250	0.92	0.81	0.63	233
Austria	5.698	0.204	0.90	0.81	0.66	470
Hungary	5.716	0.396	0.91	0.78	0.67	95
France	5.934	0.257	0.93	0.82	0.68	4173
Netherlands	5.983	0.188	0.93	0.83	0.70	1100
China	5.983	0.185	0.91	0.80	0.65	596
Finland	6.025	0.362	0.91	0.79	0.64	435
Portugal	6.228	0.374	0.92	0.83	0.69	101
Japan	6.379	0.217	0.92	0.84	0.70	5372
Belgium	6.571	0.244	0.94	0.87	0.74	585
Italy	6.662	0.336	0.94	0.87	0.77	1708
Korea	6.731	0.287	0.96	0.88	0.77	841