Whether you are willing to lower your height standard for "highrise" in this case is up to you, but since DC doesn't do tall, this is all I can do.
1987 - 1001 Pennsylvania Avenue
1989 - One Franklin Square
1990 - Market Square
1991 - 800 North Capitol Street
1992 - 1200 K Street
1993 - 1401 H Street
1995 - Thurman Arnold Building
1996 - 1900 K Street
1997 - 600 13th Street
1998 - Ronald Reagan Building and International Trade Center
1999 - Millennium Building
2000 - 1201 F Street
2001 - 1875 K Street
2002 - Post Massachusetts Avenue
2003 - Residences at Terrell Place
2004 - 500 New Jersey Avenue
2005 - 1717 Rhode Island Avenue
2006 - Ventana
2007 - Newseum and Newseum Residences
2008 - 401 Massachusetts Avenue
2009 - 55 M Street
2010 - 1100 First Street
2011 - Flats 130 at Constitution Square
2012 - Progression Place
2013 - 1212 4th Street
2013? - Akridge Half Street
2014 - CityCenterDC
2014? - West End Library and Residences