Table:
text: Grand Tour (cycling)
Grand Tour finishers
1991-present
Rider Year_ Final_Position_Giro Final_Position_Tour Final_Position_Vuelta
Adam Hansen 2013 72 72 60
Adam Hansen 2012 94 81 123
Sebastian Lang 2011 56 113 77
Carlos Sastre (2) 2010 8 20 8
Julian Dean 2009 136 121 132
Marzio Bruseghin 2008 3 27 10
Erik Zabel 2008 80 43 49
Mario Aerts 2007 20 70 28
Carlos Sastre 2006 43 4 4
Giovanni Lombardi 2005 88 118 114
Jon Odriozola Mugarza 2001 58 69 83
Mariano Piccoli 1999 38 50 58
Guido Bontempi 1992 40 75 62
Neil Stephens 1992 57 74 66
Eduardo Chozas (2) 1991 10 11 11
Marco Giovannetti 1991 8 30 18

text: Grand Tour (cycling)
Grand Tour finishers
1991-present
Rider Year_ Final_Position_Giro Final_Position_Tour Final_Position_Vuelta
Marino Lejarreta (4) 1991 5 53 3
Inaki Gaston 1991 23 61 14
Alberto Leanizbarrutia 1991 64 39 44
Valdimir Poelnikov 1991 11 88 66
Valerio Tebaldi 1991 47 89 87

Question: What is the earliest year of Valdimir Poelnikov who has a final Tour placing greater than 72, a final Vuelta placing less than 77 and a final Giro placing less than 57 among the finishers of 1991 (cycling) today?