# select extract(year from last_modified) as year, count(*) from package group by year order by year;
 year | count
------+-------
 2002 |     4
 2003 |    75
 2004 |   115
 2005 |   167
 2006 |   168
 2007 |   201
 2008 |   247
 2009 |   410
 2010 |   447
 2011 |   638
 2012 |   804
 2013 | 23311
 2014 | 16979
 2015 | 15522
(14 rows)