There should be the option to choose what sort of timescale to have on the graphs so that you can see progress over different periods of time. For example: Months
53 gamers voted for the proposal.
19 gamers voted against the proposal.
The proposal has been ACCEPTED.
We agree but it is technically very difficult. The historic data is stored in a huge database and keeping 18 months is already larger than 3 Gb per world (not including the backup of up to 6 times the whole database). Keeping it for many more years will require development effort and will also represent a performance issue.
We do agree that longer-term data will be very nice to have and we will make an effort to add it in the future.