MONTH , OTP ---------------,---------- 2017 January , 93.4 2017 February , 93.2 2017 March , 92.6 2017 April , 93.1 2017 May , 92.7 2017 June , 93.2 2017 July , 95 2017 August , 95 2017 September , 90.4 2017 October , 90.3 2017 November , 90.6 2017 December , 91.4 2018 January , 93.1 2018 February , 92.5 2018 March , 93 2018 April , 93.1 2018 May , 92.7 2018 June , 94 2018 July , 93.1 2018 August , 93.7 2018 September , 86.4 2018 October , 86.4 2018 November , 84.6 2018 December , 88.5 2019 January , 92.2 2019 February , 90.7 2019 March , 88.2 2019 April , 88.5 2019 May , 87.7 2019 June , 88.3 2019 July , 91 2019 August , 92.4 2019 September , 85.8 2019 October , 87.6 2019 November , 90.2 2019 December , 89.3 2020 January , 91.2 2020 February , 90.9 2020 March , 92.3 2020 April , 99.1 2020 May , 98.8 2020 June , 98.3 2020 July , 97.9 2020 August , 97.4 2020 September , 94.2 2020 October , 97.9 2020 November , 97.5 2020 December , 97.9 2021 January , 98.5 2021 February , 96.7 2021 March , 97.3 2021 April , 95.7 2021 May , 94.4 2021 June , 92 2021 July , 90 2021 August , 88.3 2021 September , 79.3 2021 October , 76.9 2021 November , 77.9 2021 December , 79.3 2022 January , 92.3 2022 February , 84.5 2022 March , 83.4 2022 April , 86.9 2022 May , 87.9 2022 June , 86.6 2022 July , 90 2022 August , 87.9 2022 September , 79.5 2022 October , 80.8 2022 November , 81.3 2022 December , 81.8 2023 January , 86 2023 February , 84.8 2023 March , 82.5 2023 April , 81.9 2023 May , 83.4 2023 June , 88.2 2023 July , 90 2023 August , 91.7 2023 September , 88 2023 October , 89.9 2023 November , 92.1 2023 December , 91.2