Table:
text: List of geological features on Venus
Paterae
Paterae
Name_ Latitude Longitude Diameter_km Year_named Name_origin
Kottauer Patera 36.7N 39.6E 136.0 1985 Helena; Austrian historical writer (1410–1471).
Kupo Patera 41.9S 195.5E 100.0 1997 Irena; Israelite astronomer (1929–1978).
Ledoux Patera 9.2S 224.8E 75.0 1994 Jeanne; French artist (1767–1840).
Lindgren Patera 28.1N 241.4E 110.0 2006 Astrid; Swedish author (1907–2002).
Mehseti Patera 16.0N 311.0E 60.0 1997 Ganjevi; Azeri/Persian poet (c. 1050-c. 1100).
Mezrina Patera 33.3S 68.8E 60.0 2000 Anna; Russian clay toy sculptor (1853–1938).
Nordenflycht Patera 35.0S 266.0E 140.0 1997 Hedwig; Swedish poet (1718–1763).
Panina Patera 13.0S 309.8E 50.0 1997 Varya; Gypsy/Russian singer (1872–1911).
Payne-Gaposchkin Patera 25.5S 196.0E 100.0 1997 Cecilia Helena; American astronomer (1900–1979).
Pocahontas Patera 64.9N 49.4E 78.0 1991 Powhatan Indian peacemaker (1595–1617).

Question: In what year was the feature at latitude 33.3S listed in the list of geologic features on Venus Paterae?