month	y1993	y1994	y1995	y1996
Jan	336	335	394	381
Feb	295	369	358	385
Mar	308	395	364	418
Apr	321	420	388	413
May	323	399	379	393
June	305	355	343	375
July	265	310	309	338
Aug	301	301	344	335
Sept	288	338	399	429
Oct	345	349	402	399
Nov	405	376	398	424
Dec	378	386	401	381
