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: Aug '21 1.63 GiB / 7.35 GiB / 8.97 GiB Sep '21 1.27 GiB / 5.32 GiB / 6.58 GiB / 7.51 GiB yesterday 68.35 MiB / 146.20 MiB / 214.55 MiB today 19.24 MiB / 32.95 MiB / 52.19 MiB / 164 MiB