Who has provided you with these satistics, Please post proof, or call on the Department of Census if you require.
This thread of yours is annihilating, you are not putting water to the fire, but arousing it (ginnak awilenna jalaya nodama, thawath ginna hataganne karana upakramayak).
You have been brainwashed to state that the Sinhala Population is drawing back, (Sinhala nasenne inne)
But you are wrong, The Sinhala population ever since the 1800's has always been the Majority of this Buddhist nation and will always be like that, Please check the statistics for the past 100 years where Our population has dropped.
It is true that nowadays people do not have many children as 60-80 years ago as due to the cost of living (cost of living has gone up by 10 times compared to the early 1990's)
If you are instigating an initiative in relevant of child birth, then please before proceeding please consider of today's cost of living, the Majority of our people are not rich, 70% of our people are poor (no relevance of race or religion).
please provide your Children with proper food education and a good life, do not listen to these racial counterparts suggesting to bear more children.
Please reduce the cost of living and raise salaries then you can suggest having any amounts of Children as long as you provide for them.