Bug in Financial Index calculation

Hi Andy,

the last changes you made had no effect in FI drops seen before.

this is the most recent one.

Typically it happens in January.

The FI depends on data from the previous year and this year.

if the last two years are very different, the FI can change a lot.
In January the year before last is dropped from the formula and past year becomes domonant in Jan-Feb..

Then the current year gains more weight each month.

I will see what can be done.

Most times, there are differences year to year but not very large changes.

Maybe you need to calculate FI based on total income/cost of some long period, like taking 14 game months into account, then every next new game month will not have big impact to the total of 13 older months.

now it looks that 180 is taken into calculation eventhough this is not correct index at all.