They have about 222 Beakers in the database along with reference material for each individual. For large archaeological complexes that were migratory (and whose data is spread across 20-something languages), this can be a handy tool.
|Snip of Kornice Beaker from RADON-B|
It is curious to see a number of early dates in other places, such as the Netherlands and Hungary. The earliest Beaker date appears to be in Csepel-Háros, but Muller and Van Willigen consider these contexts, source materials and data quality in the larger picture (page 73).
A lot of folks are in this database which can be sorted by date, geography, or cultural attributes. You can export a selected group (Beakers) directly into an excel spreadsheet for analysis. Since I hate math and have no time, it won't be me. Good luck.
"Problems with the Periodization of the Early Bronze Age in the Carpathian Basin in Light of the Older and Recent AMS Radiocarbon Data" Géza SZABÓ, 2017. Archeometriai Műhely 2017/XIV./2.HU
"Chronology and Bell Beaker Common Ware" Martine Piguet and Marie Besse, 2009 RADIOCARBON, Vol 51, Nr 2, 2009, p 817–830
"Bell Beakers in Spain and Portugal: Working with radiocarbon dates in the 3rd millennium BC" Richard J. Harrison, 1988 Antiquity 6