The number of cars that have been purchased since 1999, and the cost of each car is shown in the following table: Year (April to March) Number of Cars Purchased Cost (£) 1999-2000 4 21,197.02 21,197.02 21,197.02 21,197.02 2000-01 13 15,680.00 15,680.00 15,680.00 20,660.34 20,660.34 20,660.34 20,660.34 16,762.37 16,762.37 16,762.37 16,762.37 16,762.37 16,762.37 2001-02 1 23,776.05 2002-03 3 21,499.90 21,499.90 21,499.90 2003-04 4 21,813.43 21,813.43 21,813.43 21,813.43 2004-05 2004-05 cont 9 21,944.63 21,944.63 21,944.63 21,944.63 21,949.54 21,949.54 21,949.54 21,949.54 21,949.54 2005-06 (to date...