The number of current coins issued in Japan has been declining in recent years.
The number of coins produced is basically decreasing due to the spread of electronic money, etc. Therefore, there are some cases in which coins are traded at high prices for collectors.
| Number of coins to be issued | Planned number of copies to be issued | |
| 500 Yen | 336,227,000 | 352,328,000 |
| 100 Yen | 163,827,000 | 150,000,000 |
| 50 Yen | 511,000 | 1,000,000 |
| 10 Yen | 109,027,000 | 100,000,000 |
| 5 Yen | 511,000 | 1,000,000 |
| 1 Yen | 511,000 | 1,000,000 |
The number of 1 yen and 5 yen coins issued has been on the decline in recent years, so unused coins may be considered rare coins.
