(b) The General Assembly of the Commonwealth, in its efforts to provide equal basic educational opportunities for children throughout this Commonwealth, established the Board in 1947 for the following reasons:

1. (1) The growing need to reflect unequal local financial abilities of school districts in distributing school subsidies.
2. (2) The failure of local assessed valuations to provide such an index on account of the Statewide lack of assessment uniformity.
3. (3) The growing trend of the Commonwealth to assume more responsibility for financing the public school system.