 The Italian National Institute of Statistics (ISTAT) found in 2010 that 32.0% of the population went to church, mosque, synagogue or another house of worship on a weekly basis.The share of practising believers was higher in Southern (39.5%) and Insular Italy (36.9%) than the North-West (30.4%), the North-East (28.6%) and the Centre (25.4%).In the North-East religious practice was particularly high in Trentino (36.6%) and Veneto (35.1%), once dubbed "white Veneto" because of Christian Democracy's strength there (white being the party's official colour), in the Centre in Marche (35.5%), in the South in Campania (43.4%), Apulia (40.3%), Sicily (40.2%), Molise (37.8%) and Calabria (35.2%), while being particularly low in Aosta Valley (21.7%), Liguria (22.9%) and the so-called "red regions" (long-time strongholds of the left-wing/centre-left, from the Italian Communist Party to the current Democratic Party), especially Tuscany (21.5%) and Emilia-Romagna (21.7%).