CREATE TABLE "revenues_from_stamp_duties" (
  "year" text,
  "stamp_duty_reserve_tax" text,
  "standard_stamp_duty" text,
  "standard_duties_total_revenue_in_million" real,
  "over_total_tax_revenue_in_pct" text,
  "over_gdp_in_pct" real
);

Question: What is the Total Tax Revenue that has an n.a. Stamp Duty Reserve Tax in the years 1995-96?
SQL: SELECT "over_total_tax_revenue_in_pct" FROM "revenues_from_stamp_duties" WHERE "stamp_duty_reserve_tax"='n.a.' AND "year"='1995-96';