An excerpt from Ephraim Loy’s blog:
From the data, 87.0 percent of PAP candidates that were fielded did not experience the "baptism of fire" in the first general election in 1968. The subsequent general election in 1972 had put a large percentage of PAP candidates through the test. In the last general elections in 2006, 44 percent of the candidates that were fielded by the PAP had a walkover and were appointed into office. This means 37 candidates out of the 84 that were fielded took the route to Parliament without any contest.
Read the rest of the article here.