I am looking at data on recycling and compost rates and have merged this data with recycling and waste collection methods. When I merge the data does not match for one quarter in 2016 (my data is from 2012-2016) specifically for the 'other' method of waste collection. The rates have merged for all other methods and time periods, is there a reason why they wouldn't merge for the 'other' collection method? I have attached screenshots below, as you can see the rate has matched for all other methods for example in 'Adur' it is only for 'compost' 'other'. The rate data only has the variables name code year quarter and rate.

Thank You in Advance