data = [
{u'bug_id': 1, u'bug_when': Timestamp('1998-11-01 21:56:09'), u'removed': '', u'added': 'NEW'},
{u'bug_id': 2, u'bug_when': Timestamp('1998-11-02 14:20:17'), u'removed': '', u'added': 'NEW'},
{u'bug_id': 1, u'bug_when': Timestamp('1998-11-03 22:02:25'), u'removed': u'NEW', u'added': u'CLOSED'},
{u'bug_id': 3, u'bug_when': Timestamp('1998-11-04 10:02:01'), u'removed': u'', u'added': u'NEW'},
{u'bug_id': 2, u'bug_when': Timestamp('1998-11-04 10:02:02'), u'removed': u'NEW', u'added': u'CLOSED'},
{u'bug_id': 3, u'bug_when': Timestamp('1998-11-05 15:03:21'), u'removed': u'NEW', u'added': u'CLOSED'}
]