VnStati Network Statistics
I made this page using vnStat and vnStati. It has been monitoring traffic since 7th March 2015
The graphs are updated by Cron once an hour.
I have made a how to here, if you would like to try this yourself.
Traffic statistics on a hourly basis for the last 24 hours
Traffic statistics on a daily basis for the last 30 days
Traffic statistics on a monthly basis for the last 12 months
All time top 10 traffic days
And this is the live output from vnstat:
rx / tx / total / estimated wlan0: Not enough data available yet. eth0: Sep '20 3.38 GiB / 7.20 GiB / 10.59 GiB Oct '20 1.63 GiB / 5.06 GiB / 6.69 GiB / 9.69 GiB yesterday 96.15 MiB / 111.89 MiB / 208.05 MiB today 38.56 MiB / 49.59 MiB / 88.15 MiB / 214 MiB