Consider the following statements regarding the Total Fertility Rate(TFR):

1. Total Fertility Rate(TFR) is the average number of children a woman is expected to have in her lifetime 

2. A TFR of 2.0 is required to ensure that population size in India remains stable. 

3. In the span of 50 years, from 1968 to 2021 India's TFR has dropped from 5.7 to 2.03

How many of the statements given above is/are correct?