Table:
text: List of railway stations in the West Midlands
Stations
Stations
Station Year_opened Metropolitan_borough_c_ Zone_ Servedby_Route_maps_dead_link_dead_link_ Station_users_2006_07 Station_users_2007_08
Bordesley 1855 Birmingham 2 London Midland 3700 4000
Bournville 1876 Birmingham 3 London Midland 405900 466900
Butlers Lane 1957 Birmingham 5 London Midland 96000 103000
Canley 1940 Coventry 5 London Midland 77900 90000
Chester Road 1863 Birmingham 3 London Midland 266700 296200
Coseley 1852 [e ] Dudley 5 London Midland 117200 126600
Coventry 1838 Coventry 5 CrossCountry London Midland Virgin Trains 2874900 3039500
Cradley Heath 1863 Sandwell 5 Chiltern Railways London Midland 242500 288300
Dorridge 1852 Solihull 5 Chiltern Railways London Midland 300800 304500
Duddeston 1837 Birmingham 2 London Midland 55700 59900
Dudley Port 1852 [f ] Sandwell 4 London Midland 144300 155200

Question: How many metropolitan boroughs does Dorridge have on the list of West Midlands railway stations?