2013	Internet Explorer	Firefox	Chrome	Safari	Opera
May	12.6 %	27.7 %	52.9 %	4.0 %	1.6 %
April	12.7 %	27.9 %	52.7 %	4.0 %	1.7 %
March	13.0 %	28.5 %	51.7 %	4.1 %	1.8 %
February	13.5 %	29.6 %	50.0 %	4.1 %	1.8 %
January	14.3 %	30.2 %	48.4 %	4.2 %	1.9 %