Most estimates today place the age at 75 million years.
Early estimates of the entire project place the cost at $567 million.
Current estimates place the age of the impact between 1.4 and 1.6 billion years.
But recent estimates place it at more than $3 billion a year.
Current estimates on the value of the working capital would place the total price at $1.73 billion.
Some estimates place the value of the damage at around €35 million.
Estimates place the cost to the country of poor basic skills at £10 billion a year.
Some estimates place the number of victims from over 35,000 to 100,000.
As of 2011 the official population was 2,311, though more recent estimates place it closer to 5,000.
A 1991 estimate placed the total population size at about 40,000 individuals.