The average inflow is 12.2 m3/sec.
This matches the outflow to the average inflow and provides a much smoother operation of the process.
In coming up with this award, the tribunal calculated the average inflows into Tamil Nadu over a period of 10 years between 1980-81 and 1989-90.
The average inflow is 49 m3/sec.
British investors pulled out a record £864m from equity funds, compared with monthly average inflows of £506m for the previous 12 months.
As for bond funds, the four-week average inflow of $4.7 billion dropped to $908 million in the last week.
The surge continued to grow in the first five months of this year, when average monthly inflows totaled nearly $25 billion.
Equity funds saw a net outflow of £114m compared with an average inflow of £676m over a 12-month period.
The net outflow in the Isa sector contrasted sharply to a monthly average inflow of £186m over the previous 12 months.
Its average inflow is 94 m/sec.