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 '21 1.61 GiB / 6.01 GiB / 7.62 GiB Oct '21 2.36 GiB / 8.17 GiB / 10.53 GiB / 12.99 GiB yesterday 63.61 MiB / 107.60 MiB / 171.21 MiB today 19.39 MiB / 537.51 MiB / 556.90 MiB / 4.77 GiB