In viticulture and especially in Sauternes, Mother Nature reigns. We often had the opportunity to check this fact : the years 1927, 1930, 1931, 1933, 1934, 1935, 1938, 1941, 1944, 1951, 1954, 1958, 1960, 1963, 1965, 1974, and 1993 were deprived us of Bergeron (or very few bottles on certain vintages).