I'm afraid that table doesn't say much. The numbers would need to be in correlation with the total number of bikes in each cc class. If for example only 2% of people ride bikes with less than 500cc then 7% of fatalities would be awful.
As is that table contains no usable info.
Agreed, but such info is limited. The table below shows USA data. Even if you ignore the off road motorcycles, the percentage of bikes under 500 cc has got to be a bit larger than the 0-250 cc data in this table.