pre_text: ALTERNATIVE PERFORMANCE MEASURES Time Charter Equivalent (TCE) earnings: TORM defines TCE earnings, a performance measure, as revenue after port expenses, bunkers and commissions incl. freight and bunker derivatives. The Company reports TCE earnings because we believe it provides additional meaningful information to investors in relation to revenue, the most directly comparable IFRS measure. TCE earnings is a standard shipping industry performance measure used primarily to compare period-to-period changes in a shipping company’s performance irrespective of changes in the mix of charter types (i.e. spot charters, time charters and bareboat charters) under which the vessels may be employed between the periods. Below is presented a reconciliation from Revenue to TCE earnings:
table: USDm 2019 2018 2017
table: Reconciliation to revenue
table: Revenue 692.6 635.4 657.0
table: Port expenses, bunkers and commissions -267.7 -283.0 -259.9
table: TCE earnings 424.9 352.4 397.1
question: Analyse this data from a financial earnings document. What was the change in TCE earnings in 2019 from 2018?