the state of Baden-Württemberg. These 13 regions (Anbaugebiete) are broken down into 39 districts (Bereiche) which are further broken down into collective vineyard sites (Großlagen) of which there are 167. The individual vineyard sites (Einzellagen) number 2,658. Sorted by size Data from 2016. Tafelwein and Landwein regions There are seven regions for Tafelwein (Weinbaugebiete für Tafelwein), three of which are divided into two or three subregions (Untergebiete) each, and 21 regions for Landwein (Landweingebiete). These regions have the following relationship to each other, and to the quality wine regions: Grape varieties Overall nearly 135 grape varieties may be cultivated in Germany – 100 are released for white wine production and 35 for red wine production. According to the international image, Germany is still considered a region for white wine production. Since the 1980s, demand for German red wine has constantly increased, and this has resulted in a doubling of the vineyards used for red wine. Nowadays, over 35% of the vineyards are cultivated with red grapes. Some of the red grapes are also used to produce rosé. Out of all the grape varieties listed below, only 20 have a significant market share. Grape variety trends over time During the last century several changes have taken place with respect to the most planted varieties. Until the early 20th century, Elbling was Germany's most planted variety, after which it was eclipsed by Silvaner during the middle of the 20th century. After a few decades in the top spot, in the late 1960s Silvaner was overtaken by the high-yielding Müller-Thurgau, which in turn started to lose ground in the 1980s. From the mid-1990s, Riesling became the most planted variety, a position it probably had never enjoyed before on a national level. Red grapes in Germany have experienced several ups and downs. Throughout the 1960s and 1970s, there was a downward trend, which was reversed around 1980. From mid-1990s and during the next decade, there was an almost explosive growth of plantation of red varieties. Plantings was shared between traditional Spätburgunder and a number of new crossings, led by Dornfelder, while other traditional German red varieties such as Portugieser only held their ground. From around 2005, the proportion of red varieties has stabilized around 37%, about three times the 1980 level. Common white wine grapes White grape varieties account for 66% of the area planted in Germany. Principal varieties are listed below; there are