Sani Dasa and it effects for 19 years

In my research on Sani Dasa, which runs for 19 years in a chart, is not that malefic overall.

There will be definitely 12 house/place/job changes.
If living in own house, 12 different jobs.
And if the same job, 12 different clients.
(Change pattern 1, 3, 2, 3, 1, 1, 1). Living in a given place constitutes atleast 48 days, two full moon cycles and around 6 months for a job.
In fact the famous 7.5 years Sani Dasa (Sade-Sati is also calculated differently with different system of astro analysis), need not be bad, the previous one will definitely would be.
Particularly the 3rd split as shown below of 2.5 years (913 days in Vimsottari Dasa).
The salary/income levels would be low compared to previous periods.
Also the changes made would be as per the status mentioned.
If studying, the achievement in education should be lower than previous periods (needs extra care).
If the head of household has it, the whole family is affected.
If the husband and wife have Sani Dasa running concurrently, based on chart positions, one would be good and the other exact opposite. (This applies to my other research on concurrent Dasa's (any) with husband and wife - more malefic to husband, if younger to wife)
If the wife has it it will affect the husband in the bad period only, and her own job in other splits, but not for kids (vice-versa - kids dont affect parents - karma).
But the good things in life like birth of kids, onsite travel, house, vehicle purchase etc, would happen.

Let us take an example. (Scales: V.Good = 8/10, Good = 5/10, Bad = 2.5/10)

Say, if the income had been on an average Rs 100, 000/year in the first 2 periods, with the changes indicated, the 3rd Bad period would give a income of Rs 50, 000/year only.
Then it would double in the next, to the previous and should increase 25 to 30% in the next 2.
Overall for the 19 years the income level fom all sources would be flat.

Sani MD Start End days Status Changes

1 0.75 12/26/1996 to 9/25/1997 274 Good 1
2 2.5 9/25/1997 to 3/26/2000 913 Good 3
3 2.5 3/26/2000 to 9/24/2002 913 Bad 2
4 7.5 9/24/2002 to 3/24/2010 2738 Good 3
5 2.5 3/24/2010 to 9/21/2012 913 V.Good 1
6 2.5 9/21/2012 to 3/23/2015 913 V.Good 1
7 0.75 3/23/2015 to 12/22/2015 274 Good 1

The 1,3,2,3,1,1,1 changes (are imminent) could be job/place (town/house) or business contracts.

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