As per Economic Survey 2020-21, from the year ______ infant mortality rates declined by 12% for states that did not adopt the 'Ayushman Bharat Pradhan Mantri Jan Arogya Yojana' (AB-PMJAY).
1
2016-17 to 2020-21
2
2019-20 to 2020-21
3
2018-19 to 2019-20
4
2015-16 to 2019-20