This is what the email says:
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
105 1688 0 1688 0 0 1949 0 --:--:-- --:--:-- --:--:-- 1951
100 4713 0 4713 0 0 4351 0 --:--:-- 0:00:01 --:--:-- 4359
I have since turned the email off, receiving it every minute is a bit much..