The storage option fees are as follows:

Mature storage: Initial fee of 1,000 yen (tax included) plus the following fees according to the storage period

1 year storage option: 2,400 yen (tax included)

2-year storage option: 4,800 yen (tax included)

3-year storage option: 7,200 yen (tax included)

4-year storage option: 9,600 yen (tax included)

5-year storage option: 12,000 yen (tax included)

6-year storage option: 14,400 yen (tax included)

7-year storage option: 16,800 yen (tax included)

8-year storage option: 19,200 yen (tax included)

9-year storage option: 21,600 yen (tax included)

10-year storage option: 24,000 yen (tax included)

15-year storage option: 36,000 yen (tax included)

20-year storage option: 48,000 yen (tax included)

25-year storage option: 60,000 yen (tax included)