How can I store rnorm output from a loop in a separate vector?

I need to store the output into a separate vector so that I can plot the data (years against reproduction_rate). At the moment it only stores the final year and not years 1:20. Is there a way to use grep/regex to store the output values into one external vector instead of copying and pasting from the console.. Thank you !

        >N<-1000 
        >years<-1:20 
        >storage<-()
        for (year in years)  {
        reproduction_rate<-rnorm(n=1, mean=1, sd=0.4)+N
        phrase<-paste("In year", year, "the population rate was", reproduction_rate)
        print(paste("In year", year, "the population rate was", 
    reproduction_rate))
        storage<-(reproduction_rate)
}