https://marinesurveysafrica.com/en/countries/guinea monthly 0.6 https://marinesurveysafrica.com/fr/pays/guinee monthly 0.6 https://marinesurveysafrica.com/en/countries/sierra-leone monthly 0.6 https://marinesurveysafrica.com/fr/pays/sierra-leone monthly 0.6 https://marinesurveysafrica.com/en/countries/liberia monthly 0.6 https://marinesurveysafrica.com/fr/pays/liberia monthly 0.6 https://marinesurveysafrica.com/en/countries/ivory-coast monthly 0.6 https://marinesurveysafrica.com/fr/pays/cote-d-ivoire monthly 0.6 https://marinesurveysafrica.com/en/countries/ghana monthly 0.6 https://marinesurveysafrica.com/fr/pays/ghana monthly 0.6 https://marinesurveysafrica.com/en/countries/nigeria monthly 0.6 https://marinesurveysafrica.com/fr/pays/nigeria monthly 0.6 https://marinesurveysafrica.com/en/countries/cameroon monthly 0.6 https://marinesurveysafrica.com/fr/pays/cameroun monthly 0.6 https://marinesurveysafrica.com/en/countries/gabon monthly 0.6 https://marinesurveysafrica.com/fr/pays/gabon monthly 0.6 https://marinesurveysafrica.com/en/countries/angola monthly 0.6 https://marinesurveysafrica.com/fr/pays/angola monthly 0.6 https://marinesurveysafrica.com/en/countries/south-africa monthly 0.6 https://marinesurveysafrica.com/fr/pays/afrique-du-sud monthly 0.6 https://marinesurveysafrica.com/en/countries/mozambique monthly 0.6 https://marinesurveysafrica.com/fr/pays/mozambique monthly 0.6