by StoreOfValue » Fri May 03, 2013 11:58 am
Posted below I have some fairly reliable data I compiled a couple of years ago. First I found some anecdotal data from coppercoins.com (not a large sample size @ less than 1,000 coins), so I decided to compile my own data because I have never spent or turned in a 1982 cent and I hand sort EVERYTHING. I will explain the best I can what the data refers to.
First, the data on the left is actual usmint.gov statistics for Philadelphia and Denver. The first two numbers after each type coin are my percentage and totals from about 8,500 pennies. My data is skewed to overweight Denver (most certainly because of living in NM). I am also probably overweight copper (90% compared to expected 75-80%) due to sorting many of my coins from bullion purchases the last several years. Finally, the last set of numbers (in the millions and billions) I extrapolated from the ACTUAL data I compiled accounting for the ACTUAL mint statistics from Philadelphia & Denver. The percentages you see (not in bold) are the percent of total Philadelphia, percent of total Denver, percent of total Coppers, percent of total Zincs. The bold percentages represent the percents comparing only Philadelphia/Denver & Copper/Zinc. I believe this data to be close to accurate at least if you compare Zinc to Zinc or Copper to Copper. I eventually would like to extrapolate further based on the error in my P & D statistics.
Philadelphia 56.24%
10,712,525,000
64.05%
1982 P Lg Zinc 11.05% 537 1,183,424,383
1982 P Sm Zinc 0.45% 22 48,482,936
1982 P Lg Copper 85.72% 4,167 9,183,108,758
1982 P Sm Copper 2.78% 135 297,508,923
Denver 43.76%
6,012,979,368
35.95%
1982 D Lg Zinc 2.43% 92 146,270,254
1982 D Sm Zinc 5.26% 199 316,388,920
1982 D Lg Copper 92.31% 3,491 5,550,320,194
Coppers 90.17%
1982 P Lg Copper 53.47% 4,167
1982 P Sm Copper 1.73% 135
1982 D Lg Copper 44.80% 3,491
Zincs 9.83%
1982 P Lg Zinc 63.18% 537
1982 P Sm Zinc 2.59% 22
1982 D Lg Zinc 10.82% 92
1982 D Sm Zinc 23.41% 199
Sorry the data is not as clean as the spreadsheet from which it came.
-Mark
“Gold is the currency of kings, silver is the currency of the educated, barter is the currency of the working-class, and debt is the currency of slaves.”