How many RBCs in One Cubic Millimeter in an adult?

In Infants (Newborn) 5.0 to 6.5 million
In Child 4.0 to 5.2 million
In Adult Male 4.5 to 5.5 million
In Adult Female 4.0 to 5.0 million
In Old Age 4.0 to 5.0 million