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: Jan '21 1.87 GiB / 10.39 GiB / 12.25 GiB Feb '21 1.51 GiB / 7.38 GiB / 8.89 GiB / 9.90 GiB yesterday 54.84 MiB / 159.68 MiB / 214.52 MiB today 11.68 MiB / 432.15 MiB / 443.83 MiB / 3.02 GiB