Checking which packages within Android System use the most battery?

I have a Samsung Galaxy S7 Edge running Android 7.0.

Percentage-wise, screen almost always takes up the most battery (normal for phones) and Android System generally falls into second place.

I'm not having any issues with my phone's battery life.

I was just wondering if it's possible to see which packages within Android System use the most battery?

If anyone's curious, here's the package list for Android System on my phone:

• AASAservice
• Android System
• ANT+ HAL service
• Application installer
• Assistant menu
• AuthService
• Backup and Restore Manager
• BBCAgent
• Beaming Service
• BIuetoothTest
• bootagent
• Camera test
• CIipboardSaveService
• ClipboardUIService
• Colour adjustment
• com.android.waIlpaperbackup
• com.samsung.android.radiobasedlocation
• com.samsung.android.sm
• com.samsung.android.sm.provider
• com.sec.android.app.wfdbroker
• com.sec.bcservice
• com.sec.epdg
• com.sec.vsimservice
• Device maintenance
• DeviceKeystring
• DiagMonAgent
• DRParser Mode
• EmergencyManagerService
• Enterprise Sim Pin Service
• Error
• Filter Installer
• Find My Mobile
• Fingerprint
• Fused Location
• Gear VR Service
• HwModuIeTest
• IMS Service
• Input Devices
• Interaction control
• Key Chain
• Knox
• Knox SetupWizardCIient
• KnoxAppsUpdateAgent
• KnoxFoIderContainer2
• Launcher
• MhdrService
• MTP application
• OM Customize
• Perso
• Phone
• Private mode
• Quick tooIs
• Samsung ApexService
• Samsung MirrorLink 1.1
• Samsung setup wizard
• Samsung text-to-speech engine
• SamsungDLPService
• Security policy updates
• Security storage
• SecurityLogAgent
• SecVideoEngineService
• SEMFactoryApp
• Service mode
• Settings
• Settings
• Settings Storage
• SharedDeviceKeyguard
• SilentLogging
• SKMSAgentService
• SmartFaceService
• Software Update
• Software update
• Sound detectors
• SVC Agent
• SysScope
• TetheringAutomation
• Themes
• tuiService
• UIBCVirtualSoftkey
• Universal switch
• Update apps
• USBSettings
• Wallpapers
• WIanTest