2021/22
http://www.nche.org.na/publications/documents/202122
NHESY 2014
http://www.nche.org.na/node/99
NHESY 2013
http://www.nche.org.na/publications/documents/nhesy-2013
NHESY 2015
http://www.nche.org.na/publications/documents/nhesy-2015
NHESY 2016
http://www.nche.org.na/publications/documents/nhesy-2016
NHESY 2017
http://www.nche.org.na/publications/documents/nhesy-2017
NHESY 2018
http://www.nche.org.na/publications/documents/nhesy-2018
NHESY 2019
http://www.nche.org.na/publications/documents/nhesy-2019
NHESY 2020
http://www.nche.org.na/publications/documents/nhesy-2020
NHESY 2021
http://www.nche.org.na/publications/documents/nhesy-2021
