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Table 1 Trend of the population residing in the territory under investigation (1971–2016, absolute values and percentage increase rate)

From: Commoning of territorial heritage and tools of participated sustainability for the production and enhancement of agro-environmental public goods

Municipality 1971 1981 1991 2001 2011 2016 2016/2011 (%) 2016/1971 (%)
Acquaviva Platani 1.730 1.560 1.570 1.231 1.041 948 − 8.9 − 45.2
Bompensiere 780 742 722 677 610 556 − 8.9 − 28.7
Butera 7.130 6.238 5.673 5.376 4.937 4.754 − 3.7 − 33.3
Caltanissetta 60.051 61.146 61.319 61.438 61.711 63.360 2.7 5.5
Campofranco 4.830 4.582 4.150 3.632 3.218 3.100 − 3.7 − 35.8
Delia 5.120 4.855 4.537 4.350 4.325 4.277 − 1.1 − 16.5
Gela 67.050 74.806 72.535 72.774 75.668 75.827 0.2 13.1
Marianopoli 3.360 3.013 2.675 2.362 2.006 1.906 − 5.0 − 43.3
Mazzarino 15.150 15.076 13.373 12.627 12.333 12.145 − 1.5 − 19.8
Milena 3.800 3.795 3.644 3.446 3.178 3.018 − 5.0 − 20.6
Montedoro 2.610 2.021 2.010 1.780 1.643 1.631 − 0.7 − 37.5
Mussomeli 11.762 11.342 11.537 11.547 11.010 10.780 − 2.1 − 8.3
Niscemi 24.053 26.089 26.998 27.641 27.975 27.558 − 1.5 14.6
Resuttano 4.151 3.219 2.752 2.467 2.139 2.038 − 4.7 − 50.9
Riesi 15.989 15.085 12.506 11.746 11.814 11.586 − 1.9 − 27.5
San Cataldo 20.578 21.058 22.507 23.154 23.424 23.253 − 0.7 13.0
Santa Caterina 8.583 8.071 6.541 6.087 5.727 5.388 − 5.9 − 37.2
Serradifalco 6.850 6.400 6.441 6.423 6.265 6.091 − 2.8 − 11.1
Sommatino 8.917 7.692 8.226 7.875 7.267 7.038 − 3.2 − 21.1
Sutera 2.680 2.136 2.010 1.641 1.436 1.410 − 1.8 − 47.4
Vallelunga 4.940 4.596 4.397 3.845 3.641 3.461 − 4.9 − 29.9
Villalba 2.400 2.307 2.152 1.916 1.731 1.633 − 5.7 − 32.0
Totale 282.514 285.829 278.275 274.035 273.099 271.758 − 0.5 − 3.8
  1. Source: our processing on ISTAT and Ancitel data