Jax3: sample sizes

Number of animals tested for each measure in this project, by strain and sex.       Cells with N < 5 are colored pink.

Jax3 measure	Sex
age_dam_lit1   age of dam at birth of first litter   14932	(F)
	(M)
littersborn   number of litters per dam   14933	(F)
	(M)
pct_nonprod   percent matings that were nonproductive   14934	(F)
	(M)
mice_per_litter   number of mice per litter   14938	(F)
	(M)
miceborn   number of mice born per dam   14941	(F)
	(M)
miceweaned   number of mice weaned per dam   14942	(F)
	(M)
pct_wean   percent pups weaned (of total born)   14943	(F)
	(M)
pct_male_wean   percent males at weaning   14948	(F)
	(M)
mating_age   age at mating (local parameter)   14961	(F)
	(M)
mating_to_retire   time from mating to retirement (local parameter)   14965	(F)
	(M)