date	y	ep	xoil	ys	poil
1979Q2	3.98622197	-1.409392965	6.241663698	3.871611382	3.433544001
1979Q3	4.009820936	-1.447973335	6.384905555	3.880156366	3.57632221
1979Q4	4.033419902	-1.491973561	6.528147412	3.888919146	3.696729
1980Q1	4.057018868	-1.577959097	6.643656298	3.893747825	3.661657891
1980Q2	4.060362391	-1.632433052	6.759165184	3.880005798	3.643353188
1980Q3	4.083150561	-1.689533372	6.87467407	3.879945179	3.550054573
1980Q4	4.111545233	-1.732807156	6.990182956	3.894267054	3.679336785
1981Q1	4.135923317	-1.79574008	7.037948608	3.910929208	3.666903634
1981Q2	4.158010301	-1.829266707	7.085714261	3.908240131	3.561323891
1981Q3	4.164516802	-1.85209385	7.133479914	3.919338805	3.571966963
1981Q4	4.182429427	-1.879300961	7.181245566	3.912688203	3.605036964
1982Q1	4.164387536	-1.699480858	7.274060662	3.903313116	3.474382441
1982Q2	4.163284171	-1.532883917	7.366875757	3.908938613	3.535427248
1982Q3	4.156701273	-1.30209854	7.459690852	3.907401735	3.514315771
1982Q4	4.13478654	-1.459667109	7.552505948	3.91072449	3.511950937
1983Q1	4.123497863	-1.3633885	7.510536621	3.921952356	3.38074899
1983Q2	4.11205246	-1.404108137	7.468567294	3.942216405	3.395761388
1983Q3	4.115411958	-1.427393609	7.426597968	3.959897772	3.426575514
1983Q4	4.126963702	-1.455006389	7.384628641	3.978324315	3.372182671
1984Q1	4.156748747	-1.528859332	7.40824366	3.997832467	3.393072892
1984Q2	4.137824546	-1.573073561	7.431858679	4.013617285	3.387143036
1984Q3	4.163015635	-1.597590211	7.455473698	4.025082305	3.3351079
1984Q4	4.154220845	-1.630549975	7.479088717	4.034899923	3.316097221
1985Q1	4.176172346	-1.704112355	7.438826047	4.045102017	3.323724209
1985Q2	4.169760859	-1.710953147	7.398563377	4.054401459	3.296800992
1985Q3	4.177465523	-1.582649598	7.358300707	4.068821054	3.306349052
1985Q4	4.174917322	-1.518748026	7.318038037	4.078547832	3.343944334
1986Q1	4.146754874	-1.467232389	7.299473741	4.087616004	2.879129791
1986Q2	4.160940982	-1.411082142	7.280909445	4.094898641	2.55128928
1986Q3	4.13257648	-1.347350962	7.26234515	4.105837604	2.517459769
1986Q4	4.12952297	-1.301587937	7.243780854	4.112849432	2.689576256
1987Q1	4.139856881	-1.33591067	7.272783813	4.120845903	2.886208784
1987Q2	4.159341116	-1.36992651	7.301786773	4.133916081	2.927671072
1987Q3	4.164025618	-1.420674571	7.330789733	4.145496739	2.949915944
1987Q4	4.175564328	-1.389300486	7.359792692	4.162563456	2.893609265
1988Q1	4.167960477	-1.5797004	7.33099339	4.171652929	2.761788855
1988Q2	4.168102227	-1.677870274	7.302194088	4.183807644	2.785770688
1988Q3	4.167169403	-1.716312027	7.273394786	4.192486622	2.670122565
1988Q4	4.186615789	-1.733518082	7.244595484	4.206116574	2.598154457
1989Q1	4.198780714	-1.775157175	7.252103077	4.215763249	2.861286177
1989Q2	4.214980275	-1.767192255	7.259610669	4.221462377	2.924849863
1989Q3	4.225213638	-1.766525771	7.267118261	4.228944752	2.864130695
1989Q4	4.216383829	-1.770692388	7.274625853	4.234373974	2.963467313
1990Q1	4.239826447	-1.830311948	7.264149704	4.246828259	2.988069657
1990Q2	4.256131767	-1.851826353	7.253673555	4.250289378	2.770347201
1990Q3	4.271892236	-1.887095938	7.243197405	4.253975405	3.273512221
1990Q4	4.284373485	-1.926440508	7.232721256	4.251231173	3.482146033
1991Q1	4.275972157	-1.986748528	7.267618545	4.251114552	3.034424001
1991Q2	4.313870457	-2.008831821	7.302515835	4.259270655	2.933541178
1991Q3	4.305491373	-2.021876461	7.337413125	4.266066148	2.989216527
1991Q4	4.321718369	-2.055674195	7.372310414	4.272794722	3.020652856
1992Q1	4.321892468	-2.113191946	7.351568897	4.284840283	2.901457821
1992Q2	4.340856171	-2.128216345	7.33082738	4.294686412	3.001829035
1992Q3	4.350258495	-2.149995727	7.310085863	4.304870356	3.002616134
1992Q4	4.347951102	-2.166981959	7.289344346	4.316176984	2.954236365
1993Q1	4.35887633	-2.207551815	7.293871627	4.320388014	2.900529866
1993Q2	4.350129539	-2.220171141	7.298398909	4.327287129	2.903960332
1993Q3	4.363907948	-2.234739693	7.30292619	4.334611946	2.802879369
1993Q4	4.365617115	-2.254155406	7.307453472	4.347406649	2.712475179
1994Q1	4.379901132	-2.245973477	7.29209263	4.358889146	2.635957291
1994Q2	4.408225923	-2.219780559	7.276731789	4.3713716	2.775852621
1994Q3	4.409143249	-2.214028206	7.261370947	4.378763303	2.819986872
1994Q4	4.415347486	-2.059472289	7.246010105	4.389219304	2.805078272
1995Q1	4.374481039	-1.734025456	7.253539939	4.396268356	2.827044026
1995Q2	4.313733545	-1.907679172	7.261069773	4.401190841	2.898046747
1995Q3	4.324964598	-1.947853983	7.268599607	4.410394982	2.784494469
1995Q4	4.342063503	-1.864221452	7.276129441	4.417424507	2.832496975
1996Q1	4.374764243	-1.9261895	7.321048373	4.425756821	2.925734187
1996Q2	4.377399996	-1.994679383	7.365967304	4.439953191	2.969032841
1996Q3	4.392057693	-2.031977655	7.410886236	4.449552173	3.021733679
1996Q4	4.412106902	-2.031444415	7.455805168	4.461682187	3.142839573
1997Q1	4.420193119	-2.106348665	7.474884321	4.469253801	3.053120291
1997Q2	4.457886025	-2.128420787	7.493963474	4.484041074	2.893991572
1997Q3	4.461144775	-2.175030055	7.513042627	4.494462702	2.91907423
1997Q4	4.479016661	-2.15654548	7.53212178	4.503906946	2.929249835
1998Q1	4.49408223	-2.168065951	7.525224674	4.508222599	2.644558046
1998Q2	4.499676972	-2.170124745	7.518327568	4.514296216	2.587177232
1998Q3	4.508898767	-2.108693691	7.511430462	4.52370271	2.519027984
1998Q4	4.508903811	-2.116337748	7.504533356	4.538158806	2.40651415
1999Q1	4.516800398	-2.18845217	7.472414553	4.545883571	2.408715312
1999Q2	4.533167398	-2.260625988	7.44029575	4.554950319	2.729517749
1999Q3	4.548933514	-2.288942667	7.408176947	4.566867584	3.011145486
1999Q4	4.56334523	-2.301538554	7.376058144	4.584243915	3.179908993
2000Q1	4.59022659	-2.340315867	7.433931086	4.591404799	3.282078839
2000Q2	4.603284561	-2.331011518	7.491804027	4.606226636	3.288970038
2000Q3	4.614564427	-2.378081925	7.549676969	4.608394832	3.419072562
2000Q4	4.61081351	-2.380798884	7.607549911	4.614799838	3.407821547
2001Q1	4.610574343	-2.386824668	7.578350062	4.617629429	3.267607379
2001Q2	4.60463343	-2.445103485	7.549150213	4.620698604	3.319570086
2001Q3	4.599926809	-2.445427965	7.519950364	4.619386362	3.253357516
2001Q4	4.59711091	-2.45567408	7.490750515	4.623747513	3.005029826
2002Q1	4.589125289	-2.487912507	7.525569116	4.631693867	3.064004052
2002Q2	4.623032401	-2.447439711	7.560387716	4.63944377	3.238551747
2002Q3	4.616201613	-2.41992078	7.595206317	4.646944634	3.28434573
2002Q4	4.616050736	-2.415695402	7.630024918	4.649879588	3.280141952
2003Q1	4.613753052	-2.357829894	7.640541091	4.654708402	3.426885434
2003Q2	4.622279545	-2.417648887	7.651057265	4.661920341	3.250070331
2003Q3	4.62641085	-2.392905208	7.661573438	4.679668802	3.341597487
2003Q4	4.635823303	-2.357793804	7.672089612	4.68790863	3.371513673
2004Q1	4.652518182	-2.385328708	7.66763369	4.698858791	3.442492912
2004Q2	4.665022458	-2.361339316	7.663177768	4.707516859	3.558044735
2004Q3	4.672190947	-2.377962765	7.658721845	4.716883281	3.707020946
2004Q4	4.683169424	-2.398330752	7.654265923	4.72620362	3.798039775
2005Q1	4.69148415	-2.416057844	7.637104174	4.736594219	3.866734489
2005Q2	4.69212089	-2.45305664	7.619942424	4.743922141	3.967243688
2005Q3	4.706027562	-2.475828597	7.602780674	4.753242812	4.126152212
2005Q4	4.715399701	-2.483154499	7.585618924	4.761496489	4.057297159
2006Q1	4.741789696	-2.502769271	7.601100434	4.774867603	4.13649972
2006Q2	4.752033835	-2.450591139	7.616581943	4.781907266	4.253459734
2006Q3	4.750834074	-2.492052627	7.632063453	4.786208656	4.258843486
2006Q4	4.756221696	-2.508523018	7.647544962	4.79623577	4.105167798
2007Q1	4.768091272	-2.501967551	7.571365513	4.804233552	4.072053333
2007Q2	4.783894937	-2.532302423	7.495186063	4.814226864	4.228678887
2007Q3	4.787373201	-2.531378349	7.419006614	4.823216985	4.310617909
2007Q4	4.789685341	-2.554993147	7.342827164	4.831004274	4.483791733
2008Q1	4.799452727	-2.571884435	7.31608476	4.833228467	4.567185451
2008Q2	4.807992488	-2.624581348	7.289342355	4.83848387	4.807426619
2008Q3	4.799452727	-2.642446159	7.262599951	4.835218738	4.763262458
2008Q4	4.771036782	-2.408049031	7.235857546	4.828539909	4.045848196
2009Q1	4.723451773	-2.339632422	7.213015815	4.802092276	3.820417632
2009Q2	4.71664271	-2.423098455	7.190174084	4.805917792	4.088227034
2009Q3	4.730214787	-2.440013287	7.167332353	4.814817823	4.232048175
2009Q4	4.747226133	-2.462311113	7.144490622	4.835319971	4.324638807
