The Germany Construction Purchasing Managers’ Index® is based on original survey data collected from a representative panel of over 200 companies based in the German construction sector. Data are collected at mid-month, asking respondents to compare a variety of construction conditions with the situation one month ago. A reading of below 50.0 indicates that the construction activity is generally declining, above 50.0 that it is generally expanding and exactly 50.0 indicates no change on the level recorded the previous month.