Incremental Refresh Yearly SP

(StartDate as datetime, EndDate as datetime) =>
let
    start = Number.From (Date.From(StartDate)),
    end = Number.From(Date.From(EndDate))-1,
    Years = List.Distinct( List.Transform( {start..end}, each Text.From( Date.Year(Date.From(_))))),
    Source = SharePoint.Files("https://powerbipanama.sharepoint.com/sites/Services", [ApiVersion = 15]),
    #"Filtered Rows" = Table.SelectRows(Source, each List.Contains( List.Transform( Years, (x)=> Text.Contains( [Folder Path],x) ), true)),
    #"Added Custom" = Table.AddColumn(#"Filtered Rows", "Custom", each Excel.Workbook([Content], true)),
    #"Removed Other Columns" = Table.SelectColumns(#"Added Custom",{"Custom"}),
    #"Expanded Custom" = Table.ExpandTableColumn(#"Removed Other Columns", "Custom", {"Name", "Data", "Item", "Kind", "Hidden"}, {"Custom.Name", "Custom.Data", "Custom.Item", "Custom.Kind", "Custom.Hidden"}),
    #"Custom Data" = Table.Combine(#"Expanded Custom"[Custom.Data]),
Schema = #table( type table [Date = date, ProductName = text, Territory = text, Sales = number, Code = text, Master Account = text], {})
in
      try #"Custom Data" otherwise Schema