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: Dec '20 2.57 GiB / 11.24 GiB / 13.81 GiB Jan '21 1.57 GiB / 9.84 GiB / 11.41 GiB / 13.67 GiB yesterday 62.50 MiB / 74.70 MiB / 137.21 MiB today 55.18 MiB / 74.07 MiB / 129.25 MiB / 146 MiB