Rarity of VF to AU Coins

Taking the various issues of business strike trade dollars, and not including differentiation into the Type I and Type II categories, I believe the following to be an approximation of the rarity today in the grade range from VF-20 to AU-58:

1877-S: Estimated population: 50,000+.

1878-S: 30,000+.

1875-S: 25,000+.

1876-S: 25,000+.

1877: 20,000+

1875-CC: 4,000-8,000.

1873-S: 3,000-6,000+.

1874-S: 2,500-5,000.

1874-CC: 2,500-5,000.

1874: 2,500-4,500+.

1876: 2,000-4,000.

1876-CC: 1,500-2,500.

1873: 1,250-2,000.

1873-CC: 1,000-2,000.

1875: 750-1,500.

1877-CC: 400-800.

1875-S/CC: 200-400.

1878-CC: 125-250. Rarest business strike trade dollar.