What are the different rate periods?

2007 Pre-Phonorecords I (Pre-Phono 1)

2008-2012 Phonorecords I (Phono 1)

2013-2017 Phonorecords II (Phono 2)

2018-2022 Phonorecords III (Phono 3)

2023-2027 Phonorecords IV (Phono 4)