pre_text: 5.5 Other Operating Expense Items Note: (1) The non-audit fees for the current financial year ended 31 March 2019 included S$0.4 million and S$0.2million paid to KPMG LLP, Singapore and KPMG, Australia in respect of tax services, certification and review for regulatory purposes. In the previous financial year, the non-audit fees included S$0.2 million and S$0.3 million paid to Deloitte & Touche LLP, Singapore, and Deloitte Touche Tohmatsu, Australia, respectively in respect of tax services, certification and review for regulatory purposes. The Audit Committee had undertaken a review of the non-audit services provided by the auditors, KPMG LLP, and in the opinion of the Audit Committee, these services did not affect the independence of the auditors. The Audit Committee had undertaken a review of the non-audit services provided by the auditors, KPMG LLP, and in the opinion of the Audit Committee, these services did not affect the independence of the auditors.
table: Group
table: 2019 2018
table: S$ Mil S$ Mil
table: Operating expenses included the following:
table: Auditors' remuneration
table: - KPMG LLP, Singapore 2.4 -
table: - KPMG, Australia 1.2 -
table: - Other KPMG offices 1.3 -
table: - Deloitte & Touche LLP, Singapore - 1.5
table: - Deloitte Touche Tohmatsu, Australia - 1.2
table: - Other Deloitte & Touche offices - 2.1
table: Non-audit fees (1) paid to
table: - KPMG LLP, Singapore 0.4 -
table: - KPMG, Australia 0.4 -
table: - Other KPMG offices 0.1 -
table: - Deloitte & Touche LLP, Singapore - - 0.3
table: - Deloitte Touche Tohmatsu, Australia - 0.3
table: - Other Deloitte & Touche offices - 0.2
table: Impairment of trade receivables 121.8 128.0
table: Allowance for inventory obsolescence 1.1 7.1
table: Operating lease payments 437.2 470.7
question: Analyse this data from a financial earnings document. What is the average impairment of trade receivables across the 2 years?