fp1_add_realm_size_appropriate_sa_reprieve_effect

fp1_add_realm_size_appropriate_sa_reprieve_effect = {
	# Depending on the sub realm size of $VICTIM$, we give them a scaling amount of time not to be hit by SA attacks.
	## The smallest realms get a long reprieve.
	if = {
		limit = { sub_realm_size <= tiny_realm_size }
		add_character_modifier = {
			modifier = fp1_reprieve_from_sa_modifier
			years = 20
		}
	}
	## Then a decent reprieve.
	else_if = {
		limit = { sub_realm_size <= minor_realm_size }
		add_character_modifier = {
			modifier = fp1_reprieve_from_sa_modifier
			years = 15
		}
	}
	## Then a short reprieve.
	else_if = {
		limit = { sub_realm_size <= medium_realm_size }
		add_character_modifier = {
			modifier = fp1_reprieve_from_sa_modifier
			years = 10
		}
	}
	## Then you're clearly too big and juicy a target for much reprieve at all.
	else = {
		add_character_modifier = {
			modifier = fp1_reprieve_from_sa_modifier
			years = 5
		}
	}
}

As written in game/common/scripted_effects/01_dlc_fp1_scripted_effects.txt.