Rosemary's capital gains and losses in recent years (and the annual exemption for each year) have been as follows:

Gains Losses Annual exemption

£ £ £

2019-20 6,500 12,700 12,000 2020-21 11,600 2,350 12,300 2021-22 15,100 nil 12,300 2022-23 21,200 7,300 12,300 There were no unrelieved losses to bring forward from 2018-19 or earlier. Compute her taxable gains for tax years 2019-20 to 2022-23 inclusive.