The cost of maintaining "No" and "Know Nothing"

In the first six months of 2011 Opposition Leader Tony Abbott cost Australian taxpayers $388,214.18 in parliamentary entitlement expenses over and above his salary, of which $14,343.68 was noted as Family Travel Costs.

In the preceding six months he appears to have listed $525,505.24 in entitlement expenses.

During the same time periods Shadow Treasurer Joe Hockey cost taxpayers $250,835.66 and $200,433.44 respectively.

Given they both constantly question the economic credentials of the Gillard Government, perhaps Abbott and Hockey might like to finally certify their expenses covering 1 January to 30 June 2011, before moving on to give an account of the last half of that year.