35% of the Italy's total output in the sector. Since 2003, clothing has also been under development. There are also a number of enterprises in the chemical sector, while pharmaceuticals are also a strong sector. Catalysed by the CNR national research authority, facilities have been developed in Cascina, Pontedera, Santa Croce and Peccioli. There are also a number of software development firms and IT consultancies. While in recent years the economic crisis has reduced activities in most areas, agriculture had continued to grow, thanks to traditional crops, wine production and diversification in the fruit and vegetables sector. Other sectors that have recently prospered include technology (+3.4%) and glass (+4.5%) while there have been drops in footwear (-3.1%), metals (-2%), electronics and transport equipment (-9.7%), construction (-7.8%) and manufacturing (-8.2%). Tourism is also an important contributor to the local economy but in 2013 it suffered from a reduction of 10.7% in the number of visitors to the province, with a reduction of 3.5% in nights spent in hotels. Government Comuni The province is subdivided into 37 comuni (singular: comune). This is the complete list of comuni in the province of Pisa: Bientina Buti Calci Calcinaia Capannoli Casale Marittimo Casciana Terme Lari Cascina Castelfranco di Sotto Castellina Marittima Castelnuovo di Val di Cecina Chianni Crespina Lorenzana Fauglia Guardistallo Lajatico Montecatini Val di Cecina Montescudaio Monteverdi Marittimo Montopoli in Val d'Arno Orciano Pisano Palaia Peccioli Pisa Pomarance Ponsacco Pontedera Riparbella San Giuliano Terme San Miniato Santa Croce sull'Arno Santa Luce Santa Maria a Monte Terricciola Vecchiano Vicopisano Volterra List of presidents of the province of Pisa Main sights In addition to the many sights in the city of Pisa (the Leaning Tower, the cathedral and the Carovana Palace), the province has many attractions in its other towns and villages. The historic city of Volterra is noted for its cathedral, its Etruscan and Roman remains and its museums, churches and palaces. Set on the top of three hills, the medieval city of San Miniato has a cathedral, a fortress tower, two palaces and numerous old churches. The province has many villages of interest, including Vicopisano with its fortress and towers, Calci with its Charterhouse (now a museum), and Buti with its castle and Medici villa. Other points of interest include the Villa di Corliano in San Giuliano Terme, the gated medieval village of Castelfranco di Sotto, the towers of Montopoli in Val d'Arno, the