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.
Ten (10) members of the Rajya Sabha will retire in 2017 while 68 members will retire in 2018. Eight (8) members are set to retire in 2019, but none of them will retire before the 2019 general elections to the Lok Sabha. In all, 78 seats of the Rajya Sabha are up for grabs before the 2019 elections.