Band 6+: You should spend about 20 minutes on this task. The bar chart below shows the number of houses built per year in two cities, Derby and Nottingham, Between 2000 and 2009. Write a report for a university lecturer describing the information shown below. You should write at least 150 words.

The image depicts a bar chart showing the number of houses built per year in the cities of Derby and Nottingham from the year 2000 to 2009; Derby houses are represented in blue and Nottingham in yellow. In 2000, 100 houses were built in Derby and 150 in Nottingham. In 2001, Derby had 150 and Nottingham 200. In 2002, numbers in Derby rose to 200, while Nottingham increased slightly to 250. In 2003, the numbers decreased for both cities, with Derby at 90 and Nottingham at 150. For 2004, Derby built 200 houses, and Nottingham constructed 300. The year 2005 had a steep decline for both, with Derby at 90 and Nottingham at 100. In 2006, Derby's constructions slightly grew to 140, and Nottingham's to 80. By 2007, Derby numbers remain unchanged, but Nottingham's decreased to 50. The numbers rose in 2008 dramatically, with Derby constructing 350 houses while Nottingham built 320. The chart concludes with 2009 data showing Derby at 90 houses and Nottingham at 350.