SpamikazeWiki:

User agent %
Mozilla/5.0 71.86
PetalBot 7.89
DotBot/1.2 5.87
SemrushBot/3~bl 4.81
SemrushBot/2~bl 2.69
DotBot/1.1 1.78
SemrushBot/1.2~bl 0.48
MSIE 9.0 0.42
Thinkbot/0.5.8 0.34
BUbiNG 0.27
Others 3.60