<timeline>
ImageSize = width:320 height:200
PlotArea = left:40 right:10 top:15 bottom:20
TimeAxis = orientation:horizontal
AlignBars = justify
Colors =
id:gray1 value:gray(0.9)
id:gray2 value:gray(0.9)
id:gray3 value:gray(0.9)
id:gray4 value:gray(0.9)
id:gray5 value:gray(0.9)
id:sw value:green
id:ru value:blue
Period = from:2005 till:2008
ScaleMajor = unit:year increment:1 start:2005
PlotData =
bar:300 color:gray1 width:3
from:start till:end
bar:200 color:gray2
from:start till:end
bar:100 color:gray3
from:start till:end
bar:50 color:gray4
from:start till:end
bar:10 color:gray5
from:start till:end
TextData=
pos:(20,192) fontsize:M text:Число статей (тысяч)
LineData =
points:(40,70)(130,120) color:sw width:1
points:(41,25)(129,72) color:ru width:1
points:(131,120)(227,150) color:sw width:1
points:(128,72)(227,116) color:ru width:1
points:(227,150)(307,170) color:sw width:1
points:(227,116)(307,157) color:ru width:1
</timeline>