Question: What's the change over previous year as a whole in the period in which the change over same quarter the previous year was Up 2.8%?
SQL: SELECT "Change over previous year as a whole" FROM "1-171748-3" WHERE "Change over same quarter the previous year" = 'Up 2.8%';

Question: When was the percentage of trains arriving within 5 minutes of scheduled time 89.6%?
SQL: SELECT "Period" FROM "1-171748-3" WHERE "% trains arriving within 5 mins of scheduled time Moving Annual Average (MAA)" = '89.6%';

Question: What's the change over same quarter the previous year in the period when the 89.6% of the trains arrive within 5 minutes of scheduled time (over three months)?
SQL: SELECT "Change over same quarter the previous year" FROM "1-171748-3" WHERE "% trains arriving within 5 mins of scheduled time (over three months)" = '89.6%';