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

Gains Losses Annual exemption

                            £              £                  £

2014-15         6,500      12,700     11,000

2015-16        10,400       2,350     11,100

2016-17        13,900        nil      11,100

2017-18        20,200       7,300     11,300

There were no unrelieved losses to bring forward from 2013 -14 or earlier. 

Required: Compute her taxable gains for tax years 2014-15 to 2017-18 inclusive