At the present time, the oldest written source contemporary with Pepi II dates from the "Year after the 31st Count, 1st Month of Shemu, day 20" from Hatnub graffito No.7 (Spalinger, 1994), which implies, assuming a biennial cattle count system, that this king had a reign of at least 62 complete or partial years. Therefore, some Egyptologists suggest instead that Pepi II reigned no more than 64 years. These Egyptologists dispute a reign of 94 years for Pepi II and advocate a shorter reign of not much more than 64 years for this king. This is based on the complete absence of higher attested dates for Pepi beyond his Year after the 31st Count (Year 62 on a biannual cattle count). A previous suggestion by Hans Goedicke that the Year of the 33rd Count appears for Pepi II in a royal decree for the mortuary cult of Queen Udjebten was withdrawn by Goedicke himself in 1988 in favour of a reading of "the Year of the 24th Count" instead, notes Spalinger. Goedicke writes that Pepi II is attested by numerous year dates until the Year of his 31st count which strongly implies that this king died shortly after a reign of about 64 years. Other scholars note that the lack of contemporary sources dated after his 62nd year on the throne does not preclude a much longer reign, in particular since the end of Pepi II's reign was marked by a sharp decline in the fortunes of the Old Kingdom pharaohs who succeeded him.