Add unit:MegaTONNE-PER-YR (#1081)

- Add unit:MegaTONNE-PER-YR
- Correct ucumCode for TeraW-HR-PER-YR

src/main/rdf/vocab/unit/VOCAB_QUDT-UNITS-ALL.ttl

@@ -25830,6 +25830,25 @@ unit:MegaTONNE
   rdfs:isDefinedBy <http://qudt.org/2.1/vocab/unit> ;
   rdfs:label "megatonne" .
 
+unit:MegaTONNE-PER-YR
+  a qudt:Unit ;
+  dcterms:description "1,000,000,000-fold of the SI base unit kilogram divided by the unit year"^^rdf:HTML ;
+  qudt:applicableSystem sou:CGS ;
+  qudt:applicableSystem sou:CGS-EMU ;
+  qudt:applicableSystem sou:CGS-GAUSS ;
+  qudt:applicableSystem sou:SI ;
+  qudt:conversionMultiplier 31.68808781 ;
+  qudt:conversionMultiplierSN 3.168808781E1 ;
+  qudt:hasDimensionVector qkdv:A0E0L0I0M1H0T-1D0 ;
+  qudt:hasQuantityKind quantitykind:MassFlowRate ;
+  qudt:plainTextDescription "1,000,000 metric tonne divided by the unit year with 365 days" ;
+  qudt:symbol "Mt/a" ;
+  qudt:ucumCode "Mt/a"^^qudt:UCUMcs ;
+  rdfs:isDefinedBy <http://qudt.org/vocab/unit> ;
+  rdfs:label "Megatonne per Year"@en ;
+  rdfs:label "Megatonne pro Jahr"@de ;
+  rdfs:label "Mégatonne par An"@fr .
+
 unit:MegaV
   a qudt:Unit ;
   dcterms:description "1,000,000-fold of the derived unit volt"^^rdf:HTML ;
@@ -43357,7 +43376,7 @@ unit:TeraW-HR-PER-YR
   qudt:hasQuantityKind quantitykind:Power ;
   qudt:plainTextDescription "Terawatt hour per year is a unit of energy per time (i.e. power) and denotes the energy (in terawatt hours) created or consumed during one year." ;
   qudt:symbol "TW·h/a" ;
-  qudt:ucumCode "TWh/a"^^qudt:UCUMcs ;
+  qudt:ucumCode "TW.h/a"^^qudt:UCUMcs ;
   rdfs:isDefinedBy <http://qudt.org/2.1/vocab/unit> ;
   rdfs:label "Terawatt Heure par An"@fr ;
   rdfs:label "Terawatt Hour per Year"@en ;