What type of low power mode is the most power efficient for Laird's MG100?

Below are power low power modes listed from least power efficient to most power efficient:

1. eDRX with sleep mode.
   
2. eDRX with lite hibernate.
3. eDRX with hibernate.
4. PSM with sleep mode.
5. PSM with lite hibernate.
6. PSM with hibernate.
7. Modem off (completely turn the modem off between sending data).