Also, in terms of a full history, I believe it went something like this:
1996 = Males Mobikisi (1981) and Joey (1982) arrive from Antwerp
1997 = Female Jill (1985) arrives from San Diego
1998 = Female Lomela (1992) arrives from Frankfurt
Males Hani (1989) and Mwindu (1985), and females Molaso (1985), Rosie (1989), Zuani (1990) and her baby Liboso (born earlier in the year, father Hani) arrive from Kinshasa in the DRC
Male Tarishi is born to Jill and Mobikisi
1999 = Female Kumbuka is born to Molaso and Hani
2000 = Hani passes away
Rosie passes away
2001 = Joey is moved to Leipzig
2002 = Female Jasiri is born to Lomela and Mwindu
Zuani miscarries a male offspring
Tarishi passes away
Molaso passes away
2003 = Female Lingala is born to Jill and Mwindu
2004 = no changes
2005 = Zuani miscarries twice, first a girl and later in the year a boy
2006 = Female Nayembi is born to Liboso and Mwindu
2007 = Mwindu passes away
2008 = Female Hortense (1978) and her three sons Redy (1990), Zamba (1998) and Hongo (2006) arrive from Planckendael in exchange for Lomela and Jasiri
Redy passes away not long after
2009 = Female Yahimba is born to Kumbuka and Zamba
Male Makasi is born to Zuani and Zamba
2010 = Female Monyama is born to Jill and an unknown father (either Mobikisi or Zamba)
Mobikisi, Liboso and Nayembi are transferred to Stuttgart
2011 = Lingala is transferred to Romagne
Male Bolombo (1997) arrives from Cologne
2012 = Hongo passes away
2013 = Female Besede (2005) arrives from Cologne
2014 = Male Kikongo is born to Hortense and an unknown father (either Bolombo or Zamba)
Female Ayebi is born to Kumbuka and a yet to be disclosed father (either Bolombo or Zamba)
And now who knows. Chances are that this year Hortense, Zamba and Kikongo will move to Cologne in exchange for female Bonnie (1976) and her son Kindu (1984)...