What is the census ranking for the Perth parish?
{'header': ['Official Name', 'Status', 'Area km 2', 'Population', 'Census Ranking'], 'page_title': 'Victoria County, New Brunswick', 'section_title': 'Parishes', 'caption': 'Parishes', 'rows': [['Drummond', 'Parish', '1,014.90', '2250', '1,231 of 5,008'], ['Denmark', 'Parish', '750.51', '1592', '1,561 of 5,008'], ['Gordon', 'Parish', '1,430.98', '1567', '1,574 of 5,008'], ['Grand Falls', 'Parish', '158.43', '1172', '1,871 of 5,008'], ['Perth', 'Parish', '318.06', '1096', '1,956 of 5,008'], ['Andover', 'Parish', '123.57', '942', '2,160 of 5,008']]}