Material recycling, Composting and digestion in trend MSW by country

PREFIX sdmx-measure: <http://purl.org/linked-data/sdmx/2009/measure#> 
PREFIX sdmx-dimension: <http://purl.org/linked-data/sdmx/2009/dimension#> 
PREFIX sdmx-attribute: <http://purl.org/linked-data/sdmx/2009/attribute#> 
PREFIX property: <http://rdfdata.eionet.europa.eu/eurostat/property#> 
PREFIX unit: <http://dd.eionet.europa.eu/vocabulary/eurostat/unit/> 
PREFIX wst: <http://dd.eionet.europa.eu/vocabulary/eurostat/wst_oper/>
PREFIX geo: <http://dd.eionet.europa.eu/vocabulary/eurostat/geo/>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>

SELECT
year(?date) as ?date
bif:either(?geo = geo:DE, 'Germany', ?ugeo) as ?ugeo
?wst_oper_label
sum(?env_wasmun) as ?env_wasmun

WHERE { 
 GRAPH <http://rdfdata.eionet.europa.eu/eurostat/data/env_wasmun.rdf.gz> 
  { 
        _:env_wasmun sdmx-dimension:timePeriod ?date . FILTER (year(?date) > 2000)
	_:env_wasmun sdmx-dimension:refArea ?geo .
        _:env_wasmun sdmx-attribute:unitMeasure unit:THS_T .
        _:env_wasmun property:wst_oper ?wst_oper . 
        FILTER (?wst_oper in (wst:RCY_M, wst:RCY_OC))
        _:env_wasmun sdmx-measure:obsValue ?env_wasmun .
  } 
  ?geo rdfs:label ?ugeo . 
  FILTER (?geo != geo:BA && ?geo != geo:MK && ?geo != geo:XK && ?geo != geo:ME)
  ?wst_oper rdfs:label ?wst_oper_label .
} 
GROUP BY ?date ?ugeo ?geo ?wst_oper ?wst_oper_label
ORDER BY ?ugeo ?date