What is the grooviest way to get the average of integers from a file?

I have a file with integers for which I want the average. Below is what I came up with and it works, but was wondering if there was a better (groovier) way..

 File myFile = new File("myListOfNumbers.txt")
 int total = 0
 int count = 0
 myFile.eachLine {line->
  total = Integer.parseInt(line) + total
  count++
 }
println "Avg is ${total /count}"