The NGC US Coin Price Guide shows average dealer retail prices compiled from independent sources across the numismatic community. The values shown are based on actual, documented market transactions reported by collectors, dealers and auction houses for NGC-certified coins.
The Rajya Sabha members are elected by the method of proportional representation by means of the single transferable vote (STV), very similar to how the members of legislative councils in states are elected. Members keep retiring after their 6-year tenure and elections take place as and when there is a vacancy.
The allocation of seats is made on the basis of the population of each State. Consequent on the reorganization of States and formation of new States, the number of elected seats in the Rajya Sabha allotted to States and Union Territories has changed from time to time since 1952.