<Tr> <Td> 18 </Td> <Td> On the Mexican Border </Td> <Td> The Sugar Creek Gang on the Mexican Border </Td> <Td> 1950 </Td> <Td> </Td> </Tr> <Tr> <Td> 19 </Td> <Td> The Green Tent Mystery </Td> <Td> The Green Tent Mystery at Sugar Creek </Td> <Td> 1950 </Td> <Td> </Td> </Tr> <Tr> <Td> 20 </Td> <Td> The Bull Fighter </Td> <Td> 10,000 Minutes at Sugar Creek </Td> <Td> 1952 </Td> <Td> </Td> </Tr> <Tr> <Td> 21 </Td> <Td> The Trapline Thief </Td> <Td> Trap Line Thief at Sugar Creek </Td> <Td> 1953 </Td> <Td> </Td> </Tr>

How many sugar creek gang movies are there