AISHE Approvals (since inception) 2011 – 2012 2012 – 2013 2013 – 2014 2014 – 2015 2015 – 2016 2016 – 2017 2017 – 2018 2018 – 2019 2019 – 2020 2020 – 2021 2021 – 2022 2022 – 2023