2.1.3 EXCHANGE RATE DEVELOPMENTS The Lithuanian litas has been participating in ERM II with effect from 28 June 2004 , i.e. for around 22 months of the two-year reference period between May 2004 and April 2006 ( see Table 9a ) . Following a careful assessment of the appropriateness and sustainability of Lithuania 's currency board at the time of ERM II entry ,
menti il quale , dopo essere salito all' 11,7 per cento del PIL nel 1998 e sceso al 4,7 nel 2002 , è aumentato nuovamente al 5,6 per cento nel 2005 ( cfr .