First of all, the largest pile of every resource in the world:
resource...........................now..........was 1 yr ago......difference......was 2 yrs ago.....difference.....was 3 yrs ago.....difference
limestone......................26,458,346.......22,392,310.......+4,066,036.......15,906,089.......+6,486,221.......9,956,477.......+5,949,612
They've really been slacking this time...has someone found a new hobby in the past year?