In the event of rice crisis the, authorities reported the following increase of price per kilo from several rice retailer from the different markets in Metro Manila:

Increase in Peso:
1.00 1.50 2.00 2.00 2.50 3.00 3.00 3.00
1.00 2.00 2.00 2.50 2.50 3.00 3.00 4.00

What is the average increase? {} round - off your answer in 2 decimal places​