CREATE TABLE "table1_26013618_1" (
  "nsg_nr" real,
  "name_of_the_nature_reserve" text,
  "district_town" text,
  "area_ha" text,
  "date_established" text
);

Question: What Nature reserve number was established on 19961220 20.12.1996
SQL: SELECT MIN("nsg_nr") FROM "table1_26013618_1" WHERE "date_established"='19961220 20.12.1996';

Question: How many reserves were established on 19740329 29.03.1974?
SQL: SELECT COUNT("nsg_nr") FROM "table1_26013618_1" WHERE "date_established"='19740329 29.03.1974';

Question: When was Stellbrookmoor established?
SQL: SELECT "date_established" FROM "table1_26013618_1" WHERE "name_of_the_nature_reserve"='Stellbrookmoor';

Question: What town has the reserve with an area of 163,62?
SQL: SELECT "district_town" FROM "table1_26013618_1" WHERE "area_ha"='163,62';

Question: How many reserves are in Herzogtum Lauenburg with an area of 123,14?
SQL: SELECT COUNT("nsg_nr") FROM "table1_26013618_1" WHERE "district_town"='Herzogtum Lauenburg' AND "area_ha"='123,14';

Question: How many names does nature reserve 54 have?
SQL: SELECT COUNT("name_of_the_nature_reserve") FROM "table1_26013618_1" WHERE "nsg_nr"=54;