(copy from: https://bitcointalk.org/index.php?topic=227395.0)
(Updated 2013-06-10: added Namecoin)
I was curious about the real inflation rate (=growth of the money supply) of major altcoins, in comparison to BTC. So I created this little “investigation” with the blockchain explorers.
I took the total amount of each coin at 2013-06-06 at 7:50 AM and compared it to the value of 2013-05-27 at the same time. The result is an approximation to the inflation for the last 10 days.
I took all major altcoins which were created more than 30 days ago, because in the case of very young coins the inflation rate would drop significantly in the next weeks (for this reason, BTB has the highest inflation in the table).
Here is the list (in %), including an estimate for 30 day- and 365 day-inflation. (Obviously it’s not the real monthly and yearly inflation but the actual inflation rate projected to 30 and 365 days)
(Actualized 2013-06-09, NMC added, BTE data actualized to same data points)
Coin 10 day 30 day 365 day
1. CNC*# 0.072 0.216 2.628
2. BTE*# 0.141 0.423 5.146
3. BTC 0.420 1.260 15.333
4. PPC+ 0.554 1.662 20.221
5. NVC+ 0.632 1.896 23.068
6. FTC* 0.974 2.922 35.551
7. NMC 1.310 3.930 47.815
8. FRC 1.402 4.206 51.173
9. DVC 1.572 4.716 57.378
10. LTC 1.608 4.824 58.692
11. BQC 3.307 9.921 120.705
12. TRC 4.214 12.642 153.811
13. BTB*+ 8.116 24.348 296.234
- Young coins with less than 90 days of age.
Coins with a low block creation rate (BTE: last block 2013-05-31, CNC: about 5 blocks a day). Seems the difficulty is too high for the actual hashrate. In the case of BTE I took the 10 last days of May because there were no blocks in June (dead?)
- = Coins with Proof-of-Stake (PoS blocks have a very low reward compared to PoW blocks)
Here are the entire calculations I made:
Block Date Tx Total coins
LTC
365833 2013-06-06 07:50:02 3 102.85992842 604.611 18291154.37222158
360041 2013-05-27 07:53:01 4 77.72225458 595.662 18001554.37222158
289600 / 18001554 = 0.01608
PPC
51622 2013-06-06 07:49:56 1 431.95 287162.728 19169041.251295
49969 2013-05-27 07:46:53 2 11.42852 3.12 19063279.392969
105762 / 19063279 = 0.00554
DVC
92412 2013-06-06 07:50:41 1 50000 933935.191 4616420050
90983 2013-05-27 07:50:19 1 50000 161536.457 4544970050
71450000 / 4544970050 = 0.01572
TRC
140795 2013-06-06 07:49:23 1 20 21329.264 2815949.85549999
135101 2013-05-27 07:47:26 3 20.3674 23505.217 2702069.85549999
113880 / 2702069 = 0.04214
FRC***
28993 2013-06-06 07:38:33 8 36108.81603019 25876.102 21312585.55440119
28582 2013-05-27 07:50:07 4 16823.79062205 46204.801 21017829.81493085
294756 / 21017829 = 0.01402
NVC
25131 2013-06-06 07:45:17 2 1.04838 0.03 397068.666061
23392 2013-05-27 07:56:35 2 10.310396 0.026 394571.727885
2497 / 394571 = 0.00632
BQC
439112 2013-06-06 07:49:50 5 465.2565143 0.941 18442732
425054 2013-05-27 07:50:53 1 42 0.811 17852307.2
590425 / 17852307 = 0.03307
FTC*
33457 2013-06-06 08:04:43 50 13385.19007571 94.087 6691450
33134 2013-05-27 07:49:43 3 969.01333213 133.065 6626850
64600 / 6626850 = 0.00974
BTE**
18349 2013-06-06 06:23:27 4 2598.74913 35794.675 917500
18323 2013-05-27 07:16:06 32 8382.03671721 35794.675 916200
1300 / 916200 = 0.00141
(older data:)
18331 2013-05-31 04:50:44 32 20115.49071183 35794.675 916600
18300 2013-05-21 05:00:30 64 3182.7685 35794.675 915050
1550 / 915050 = 0.00169
BTB*
10386 2013-06-06 07:53:58 2 0.197887 10.981 3370.800687
8911 2013-05-27 07:48:13 1 0.172421 10.237 3117.00866
253 / 3117 = 0.08116
CNC**
58076 2013-06-06 04:03:02 6 2500.5952416 41.821 5110738
58034 2013-05-27 16:07:47 24 25597.18144108 41.821 5107042
3696 / 5107042 = 0.00072
BTC (for comparison):
2012-06-06 11234975
2012-05-27 11187975
47000 / 11187975 = 0.00420
NMC (not sure if 100% correct, but for my purpose it should be OK)
27/05/13 7:49 - Block 112936 = 5646800
06/06/13 7:50 - Block 114420 = 5721000
74200 / 5721000 = 0.0131
Sources:
http://cryptocoinexplorer.com
http://blockchain.info (BTC)
http://explorer.litecoin.org (LTC)