| | | | | ︹2021︺ 6 | | | 2021 1 30 | | | | | | | | | | | | | | | | | | | | | CPI | 3% | CPI | | 6% | | | | | | | | | | | | = | | | SCPI | | | = | | | SCPI | 30 | 30 30 | | 15 15 15 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 20 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ︹2017︺ 15 | | |