Help appending how many times an event ID has occurred next to the unique Event ID.

Question

Hello,
I am trying to figure out how to find how many times an event occurred and then append that next to the single  -unique Event ID.
The closest I can find is the Sort-Object Count but I can't figure out how to get that work within the below script.
Any help would be appreciated, the below script works already. but just doesn't have that Event ID count. 
Thank you for any help. 
Below is the
script to pull all Event Logs for each server, filter them to only display Warnings, Failures, and FailureAudits for Application, System, and Security logs and then remove all duplicate EventIDs so only 1 of each is shown. it then exports that info into a
.CSV per server.
param([string]$days= "31" )
$servers = @("Server1", "Server2" "Server3", "Etc")
$user = Get-Credential
#Set namespace and calculate the date to start from
$namespace = "root\CIMV2"
$BeginDate=[System.Management.ManagementDateTimeConverter]::ToDMTFDateTime((get-date).AddDays(-$days))
$store = "C:\Powershell\MonthlyMaintenance"
foreach ($computer in $servers)
$filter="TimeWritten >= '$BeginDate' AND (type='Warning' OR type='Error' OR type='FailureAudit')"
Echo "Pulling Event Logs for $computer ..."
Get-WmiObject Win32_NTLogEvent -computername $computer -Filter $filter |
sort eventcode -unique |
select Computername,
Logfile,
Type,
@{N='TimeWritten';E={$_.ConvertToDateTime($_.TimeWritten)}},
SourceName,
Message,
Category,
EventCode,
User |
Export-CSV C:\Powershell\MonthlyMaintenance\$computer-Filter.csv
Echo "Done."

Answer 1

Unfortunately adding that to the script just outputs a bunch of jargon:
#TYPE Microsoft.PowerShell.Commands.Internal.Format.FormatStartData
ClassId2e4f51ef21dd47e99d3c952918aff9cd
pageHeaderEntry
pageFooterEntry
autosizeInfo
shapeInfo
033ecb2bc07a4d43b5ef94ed5a35d280
Microsoft.PowerShell.Commands.Internal.Format.AutosizeInfo
Microsoft.PowerShell.Commands.Internal.Format.TableHeaderInfo
9e210fe47d09416682b841769c78b8a3
I did try adding it in various ways and removing the initial # Sort EventCode -unique | # and I just get the same jargon
Am I adding it in wrong some how? 
Thank you again for any help.
param([string]$days= "31" )
$servers = @("ComputerName")
$user = Get-Credential
#Set namespace and calculate the date to start from
$namespace = "root\CIMV2"
$BeginDate=[System.Management.ManagementDateTimeConverter]::ToDMTFDateTime((get-date).AddDays(-$days))
$store = "C:\Powershell\MonthlyMaintenance"
foreach ($computer in $servers)
$filter="TimeWritten >= '$BeginDate' AND (type='Warning' OR type='Error' OR type='FailureAudit')"
Echo "Pulling Event Logs for $computer ..."
Get-WmiObject Win32_NTLogEvent -computername $computer -Filter $filter |
sort eventcode -unique |
select Computername,
Logfile,
Type,
@{N='TimeWritten';E={$_.ConvertToDateTime($_.TimeWritten)}},
SourceName,
Message,
Category,
User,
EventCode | Select Name,Count | FT -auto|
Export-CSV C:\Powershell\MonthlyMaintenance\$computer-Filter.csv
Echo "Done."