Similar to ISO_3166-2:US
ISO 3166-2:SE
ISO 3166-2:SEISO 3166-2:SG
ISO 3166-2:SGISO 3166-2:SH
ISO 3166-2:SHISO 3166-2:SI
ISO 3166-2:SIISO 3166-2:SJ
ISO 3166-2:SJISO 3166-2:SK
ISO 3166-2:SKISO 3166-2:SL
ISO 3166-2:SLISO 3166-2:SM
ISO 3166-2:SMISO 3166-2:SN
ISO 3166-2:SNISO 3166-2:SO
ISO 3166-2:SOISO 3166-2:SR
ISO 3166-2:SRISO 3166-2:SS
ISO 3166-2:SSISO 3166-2:ST
ISO 3166-2:STISO 3166-2:SV
ISO 3166-2:SVISO 3166-2:SX
ISO 3166-2:SXISO 3166-2:SY
ISO 3166-2:SYISO 3166-2:SZ
ISO 3166-2:SZISO 3166-2:TC
ISO 3166-2:TCISO 3166-2:TD
ISO 3166-2:TDISO 3166-2:TF
ISO 3166-2:TFISO 3166-2:TG
ISO 3166-2:TGISO 3166-2:TH
ISO 3166-2:THISO 3166-2:TJ
ISO 3166-2:TJISO 3166-2:TK
ISO 3166-2:TKISO 3166-2:TL
ISO 3166-2:TLISO 3166-2:TM
ISO 3166-2:TM
ISO 3166-2:TN
ISO 3166-2:TNISO 3166-2:TO
ISO 3166-2:TO