Consider the following statements regarding India's Total Fertility Rate (TFR) and its demographic implications:

Statements

1. The Total Fertility Rate (TFR) measures the average number of children a woman would bear over her reproductive lifetime, and a TFR of 2.1 is considered the replacement-level rate at which a population sustains itself without growth or decline.
2. The Crude Birth Rate (CBR) and the Total Fertility Rate (TFR) measure the same demographic phenomenon and can be used interchangeably when assessing whether a population is replacing itself across generations.
3. A country whose TFR falls below replacement level will necessarily experience an immediate decline in its total population size.