How to get oscillator strength from CC2 calculation by set CC_STATE_TO_OPT?

Hi everyone ,
When i read the manual , i found the keyword CC_STATE_TO_OPT. I set CC_STATE_TO_OPT [1,1], the oscillator strength between S1 and S2 was given in the output file. If i want to get the oscillator strength between S1 and S0 ,How should I set this keyword?

METHOD cc2
BASIS  cc-pvdz
AUX_BASIS  rimp2-cc-pvdz
CC_MEMORY 8000
MEM_TOTAL  =  10000
MEM_STATIC = 1000
THREADS    28
EE_SINGLETS = 2
EE_TRIPLETS = 2
CC_SYMMETRY FALSE
IQMOL_FCHK  =  TRUE
CC_STATE_TO_OPT [1,1]
CC_TRANS_PROP 2

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