== Unclear == 
 ...recently the decade from 2001 to 2010 is often included,[2] so that the whole period of the 1990s to the present is referred to as the Lost Two Decades or the Lost 20 Years 

          I don't understand this sentence. Does it encompass 1990-2010 or it continues in the present (1990-)? It's just not clear from the text. I suggest editing.