23/24 year cycle - will be birth years 2012, 2013, 2014, 2015
24/25 year cycle will be birth years 2013, 2014, 2015, 2016
Updated over 9 months ago
23/24 year cycle - will be birth years 2012, 2013, 2014, 2015
24/25 year cycle will be birth years 2013, 2014, 2015, 2016