analytics: Fix reference to potentially null row.hours_per_user.
analytics: Fix reference to potentially null row.hours_per_user.

punchagan/zulip,sup95/zulip,blaze225/zulip,zacps/zulip,niftynei/zulip,AZtheAsian/zulip,niftynei/zulip,peiwei/zulip,TigorC/zulip,eeshangarg/zulip,peguin40/zulip,rishig/zulip,calvinleenyc/zulip,synicalsyntax/zulip,peiwei/zulip,calvinleenyc/zulip,peiwei/zulip,isht3/zulip,rishig/zulip,rht/zulip,christi3k/zulip,blaze225/zulip,Juanvulcano/zulip,sonali0901/zulip,niftynei/zulip,showell/zulip,amanharitsh123/zulip,isht3/zulip,PhilSk/zulip,zacps/zulip,Diptanshu8/zulip,eeshangarg/zulip,souravbadami/zulip,niftynei/zulip,vabs22/zulip,isht3/zulip,arpith/zulip,dattatreya303/zulip,mahim97/zulip,samatdav/zulip,SmartPeople/zulip,verma-varsha/zulip,blaze225/zulip,vabs22/zulip,timabbott/zulip,tommyip/zulip,dhcrzf/zulip,punchagan/zulip,krtkmj/zulip,eeshangarg/zulip,tommyip/zulip,arpith/zulip,niftynei/zulip,joyhchen/zulip,Juanvulcano/zulip,AZtheAsian/zulip,blaze225/zulip,tommyip/zulip,shubhamdhama/zulip,Vallher/zulip,rishig/zulip,amanharitsh123/zulip,eeshangarg/zulip,dhcrzf/zulip,aakash-cr7/zulip,AZtheAsian/zulip,synicalsyntax/zulip,mohsenSy/zulip,showell/zulip,aakash-cr7/zulip,tommyip/zulip,KingxBanana/zulip,SmartPeople/zulip,Jianchun1/zulip,synicalsyntax/zulip,andersk/zulip,Frouk/zulip,peguin40/zulip,calvinleenyc/zulip,vikas-parashar/zulip,synicalsyntax/zulip,aakash-cr7/zulip,hackerkid/zulip,jainayush975/zulip,synicalsyntax/zulip,zulip/zulip,AZtheAsian/zulip,mahim97/zulip,vaidap/zulip,amyliu345/zulip,sharmaeklavya2/zulip,zacps/zulip,amanharitsh123/zulip,sonali0901/zulip,dawran6/zulip,PhilSk/zulip,brainwane/zulip,samatdav/zulip,sharmaeklavya2/zulip,TigorC/zulip,vabs22/zulip,krtkmj/zulip,Frouk/zulip,amyliu345/zulip,zulip/zulip,PhilSk/zulip,reyha/zulip,sonali0901/zulip,SmartPeople/zulip,umkay/zulip,ryanbackman/zulip,Galexrt/zulip,jainayush975/zulip,joyhchen/zulip,zulip/zulip,shubhamdhama/zulip,grave-w-grave/zulip,vaidap/zulip,rishig/zulip,susansls/zulip,hackerkid/zulip,verma-varsha/zulip,Galexrt/zulip,cosmicAsymmetry/zulip,timabbott/zulip,JPJPJPOPOP/zulip,brockwhittaker/zulip,mohsenSy/zulip,ryanbackman/zulip,kou/zulip,amanharitsh123/zulip,showell/zulip,mahim97/zulip,KingxBanana/zulip,jackrzhang/zulip,Frouk/zulip,arpith/zulip,Jianchun1/zulip,ahmadassaf/zulip,jackrzhang/zulip,sup95/zulip,blaze225/zulip,hackerkid/zulip,cosmicAsymmetry/zulip,kou/zulip,rishig/zulip,kou/zulip,JPJPJPOPOP/zulip,eeshangarg/zulip,sup95/zulip,amanharitsh123/zulip,ahmadassaf/zulip,Diptanshu8/zulip,krtkmj/zulip,Jianchun1/zulip,cosmicAsymmetry/zulip,mahim97/zulip,isht3/zulip,punchagan/zulip,samatdav/zulip,Jianchun1/zulip,timabbott/zulip,hackerkid/zulip,sup95/zulip,rht/zulip,punchagan/zulip,grave-w-grave/zulip,Juanvulcano/zulip,sup95/zulip,ahmadassaf/zulip,dhcrzf/zulip,aakash-cr7/zulip,ryanbackman/zulip,vaidap/zulip,grave-w-grave/zulip,jainayush975/zulip,showell/zulip,vikas-parashar/zulip,jphilipsen05/zulip,shubhamdhama/zulip,zacps/zulip,zulip/zulip,shubhamdhama/zulip,hackerkid/zulip,Diptanshu8/zulip,Jianchun1/zulip,Vallher/zulip,jackrzhang/zulip,peiwei/zulip,jrowan/zulip,andersk/zulip,Galexrt/zulip,paxapy/zulip,aakash-cr7/zulip,Vallher/zulip,synicalsyntax/zulip,jrowan/zulip,vabs22/zulip,dattatreya303/zulip,shubhamdhama/zulip,brockwhittaker/zulip,Vallher/zulip,grave-w-grave/zulip,dawran6/zulip,vaidap/zulip,andersk/zulip,samatdav/zulip,umkay/zulip,mahim97/zulip,vikas-parashar/zulip,Frouk/zulip,aakash-cr7/zulip,zulip/zulip,showell/zulip,peguin40/zulip,souravbadami/zulip,dhcrzf/zulip,amyliu345/zulip,showell/zulip,dawran6/zulip,Frouk/zulip,hackerkid/zulip,kou/zulip,brockwhittaker/zulip,jrowan/zulip,verma-varsha/zulip,Vallher/zulip,rishig/zulip,brainwane/zulip,verma-varsha/zulip,paxapy/zulip,joyhchen/zulip,susansls/zulip,KingxBanana/zulip,kou/zulip,dhcrzf/zulip,krtkmj/zulip,umkay/zulip,susansls/zulip,Galexrt/zulip,brockwhittaker/zulip,brainwane/zulip,ahmadassaf/zulip,amyliu345/zulip,sonali0901/zulip,KingxBanana/zulip,Juanvulcano/zulip,peguin40/zulip,jackrzhang/zulip,JPJPJPOPOP/zulip,PhilSk/zulip,jphilipsen05/zulip,timabbott/zulip,andersk/zulip,susansls/zulip,christi3k/zulip,niftynei/zulip,KingxBanana/zulip,samatdav/zulip,KingxBanana/zulip,AZtheAsian/zulip,PhilSk/zulip,ahmadassaf/zulip,JPJPJPOPOP/zulip,andersk/zulip,ahmadassaf/zulip,SmartPeople/zulip,peguin40/zulip,peiwei/zulip,paxapy/zulip,dattatreya303/zulip,umkay/zulip,ahmadassaf/zulip,sharmaeklavya2/zulip,cosmicAsymmetry/zulip,Galexrt/zulip,amyliu345/zulip,isht3/zulip,samatdav/zulip,eeshangarg/zulip,TigorC/zulip,cosmicAsymmetry/zulip,tommyip/zulip,jrowan/zulip,grave-w-grave/zulip,sonali0901/zulip,joyhchen/zulip,punchagan/zulip,reyha/zulip,brockwhittaker/zulip,TigorC/zulip,jphilipsen05/zulip,souravbadami/zulip,peiwei/zulip,jrowan/zulip,zulip/zulip,JPJPJPOPOP/zulip,dattatreya303/zulip,shubhamdhama/zulip,mohsenSy/zulip,sharmaeklavya2/zulip,christi3k/zulip,SmartPeople/zulip,andersk/zulip,ryanbackman/zulip,reyha/zulip,reyha/zulip,sharmaeklavya2/zulip,jrowan/zulip,hackerkid/zulip,Frouk/zulip,verma-varsha/zulip,Juanvulcano/zulip,SmartPeople/zulip,Galexrt/zulip,vaidap/zulip,calvinleenyc/zulip,vikas-parashar/zulip,christi3k/zulip,rht/zulip,joyhchen/zulip,mahim97/zulip,arpith/zulip,mohsenSy/zulip,Diptanshu8/zulip,AZtheAsian/zulip,andersk/zulip,jackrzhang/zulip,krtkmj/zulip,amyliu345/zulip,PhilSk/zulip,blaze225/zulip,dattatreya303/zulip,dawran6/zulip,sonali0901/zulip,mohsenSy/zulip,Galexrt/zulip,jackrzhang/zulip,dawran6/zulip,tommyip/zulip,arpith/zulip,synicalsyntax/zulip,jackrzhang/zulip,j831/zulip,verma-varsha/zulip,christi3k/zulip,kou/zulip,timabbott/zulip,susansls/zulip,Frouk/zulip,Vallher/zulip,jainayush975/zulip,kou/zulip,souravbadami/zulip,krtkmj/zulip,Juanvulcano/zulip,vabs22/zulip,j831/zulip,brainwane/zulip,jphilipsen05/zulip,dhcrzf/zulip,brainwane/zulip,j831/zulip,timabbott/zulip,christi3k/zulip,rishig/zulip,brainwane/zulip,rht/zulip,JPJPJPOPOP/zulip,susansls/zulip,TigorC/zulip,Diptanshu8/zulip,arpith/zulip,krtkmj/zulip,peiwei/zulip,ryanbackman/zulip,rht/zulip,jphilipsen05/zulip,Vallher/zulip,jainayush975/zulip,reyha/zulip,zacps/zulip,rht/zulip,vikas-parashar/zulip,vabs22/zulip,j831/zulip,zulip/zulip,sup95/zulip,jainayush975/zulip,showell/zulip,dawran6/zulip,dhcrzf/zulip,shubhamdhama/zulip,grave-w-grave/zulip,paxapy/zulip,souravbadami/zulip,sharmaeklavya2/zulip,paxapy/zulip,rht/zulip,cosmicAsymmetry/zulip,calvinleenyc/zulip,zacps/zulip,Jianchun1/zulip,umkay/zulip,mohsenSy/zulip,brockwhittaker/zulip,jphilipsen05/zulip,brainwane/zulip,joyhchen/zulip,punchagan/zulip,ryanbackman/zulip,reyha/zulip,peguin40/zulip,souravbadami/zulip,paxapy/zulip,isht3/zulip,tommyip/zulip,Diptanshu8/zulip,umkay/zulip,umkay/zulip,TigorC/zulip,vaidap/zulip,vikas-parashar/zulip,punchagan/zulip,dattatreya303/zulip,j831/zulip,timabbott/zulip,calvinleenyc/zulip,amanharitsh123/zulip,eeshangarg/zulip,j831/zulip