pre_text: 3.1 OPERATING RESULTS (1) Fiscal 2019 average foreign exchange rate used for translation was 1.3255 USD/CDN. (2) Fiscal 2018 was restated to comply with IFRS 15 and to reflect a change in accounting policy as well as to reclassify results from Cogeco Peer 1 as discontinued
  operations. For further details, please consult the "Accounting policies" and "Discontinued operations" sections. (3) Fiscal 2019 actuals are translated at the average foreign exchange rate of fiscal 2018 which was 1.2773 USD/CDN.
table: Years ended August 31, 2019 (1) 2018 (2) Change Change in constant currency (3) Foreign exchange impact (3)
table: (in thousands of dollars, except percentages) $ $ % % $
table: Revenue 2,331,820 2,147,404 8.6 6.8 37,433
table: Operating Expenses 1,203,980 1,121,625 7.3 5.4 21,636
table: Management fees – Cogeco Inc. 19,900 18,961 5.0 5.0 -
table: Adjusted EBITDA 1,107,940 1,006,818 10.0 8.5 15,797
table: Adjusted EBITDA margin 47.5% 46.9%
question: Analyse this data from a financial earnings document. What is the increase / (decrease) in revenue from 2018 to 2019?