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 upper house in the seven states with a bicameral legislature is called the Legislative Council, or Vidhan Parishad. Members of a Vidhan Sabha are direct representatives of the people of the particular state as they are directly elected by an electorate consisting of all citizens above the age of 18 of that state.