Southern Oscillation Index (SOI)Date Value195101 1.5195102 0.9195103 -0.1195104 -0.3195105 -0.7195106 0.2195107 -1.0195108 -0.2195109 -1.1195110 -1.0195111 -0.8195112 -0.7195201 -0.9195202 -0.6195203 0.5195204 -0.2195205 0.8195206 0.7195207 0.5195208 0.1195209 -0.2195210 0.4195211 0.0195212 -1.2195301 0.3195302 -0.5195303 -0.2195304 0.2195305 -1.7195306 0.1195307 0.0195308 -1.2195309 -1.2195310 0.1195311 -0.3195312 -0.5195401 0.7195402 -0.3195403 0.3195404 0.6195405 0.5195406 0.1195407 0.4195408 1.1195409 0.2195410 0.3195411 0.1195412 1.4195501 -0.5195502 1.9195503 0.6195504 -0.1195505 1.0195506 1.3195507 1.6195508 1.5195509 1.3195510 1.5195511 1.2195512 1.0195601 1.3195602 1.6195603 1.3195604 0.9195605 1.4195606 1.1195607 1.1195608 1.2195609 0.1195610 1.8195611 0.2195612 1.1195701 0.6195702 -0.1195703 0.2195704 0.2195705 -0.7195706 0.2195707 0.2195708 -0.5195709 -0.9195710 0.0195711 -1.0195712 -0.3195801 -1.9195802 -0.5195803 0.3195804 0.4195805 -0.5195806 0.3195807 0.4195808 0.9195809 -0.3195810 0.1195811 -0.4195812 -0.6195901 -0.9195902 -1.4195903 1.3195904 0.4195905 0.5195906 -0.1195907 -0.3195908 -0.1195909 0.0195910 0.5195911 0.9195912 0.9196001 0.1196002 0.1196003 1.0196004 0.8196005 0.5196006 0.1196007 0.5196008 0.8196009 0.7196010 0.1196011 0.5196012 0.8196101 -0.3196102 0.9196103 -1.8196104 0.8196105 0.3196106 0.1196107 0.2196108 0.2196109 0.1196110 -0.3196111 0.5196112 1.5196201 2.0196202 -0.3196203 0.1196204 0.2196205 1.1196206 0.7196207 0.1196208 0.6196209 0.4196210 1.0196211 0.3196212 0.2196301 1.0196302 0.6196303 1.1196304 0.8196305 0.4196306 -0.5196307 -0.1196308 0.0196309 -0.6196310 -1.2196311 -0.8196312 -1.2196401 -0.4196402 0.0196403 1.1196404 1.1196405 0.2196406 0.8196407 0.6196408 1.5196409 1.3196410 1.3196411 0.2196412 -0.3196501 -0.4196502 0.4196503 0.8196504 -0.5196505 0.2196506 -0.6196507 -1.8196508 -0.7196509 -1.3196510 -0.9196511 -1.5196512 0.2196601 -1.3196602 -0.2196603 -0.9196604 -0.2196605 -0.4196606 0.3196607 0.1196608 0.6196609 -0.2196610 -0.1196611 0.0196612 -0.3196701 1.7196702 1.7196703 1.2196704 0.0196705 0.0196706 0.6196707 0.2196708 0.7196709 0.5196710 0.1196711 -0.4196712 -0.6196801 0.5196802 1.3196803 0.1196804 0.0196805 1.2196806 1.1196807 0.7196808 0.3196809 -0.3196810 -0.1196811 -0.3196812 0.2196901 -1.5196902 -0.5196903 0.4196904 -0.4196905 -0.2196906 0.2196907 -0.5196908 -0.1196909 -1.0196910 -0.9196911 -0.1196912 0.4197001 -1.1197002 -1.0197003 0.6197004 -0.1197005 0.4197006 1.0197007 -0.4197008 0.6197009 1.2197010 1.0197011 1.6197012 1.9197101 0.4197102 2.0197103 2.3197104 1.7197105 0.9197106 0.4197107 0.2197108 1.5197109 1.4197110 1.7197111 0.5197112 0.3197201 0.5197202 1.1197203 0.6197204 -0.1197205 -1.6197206 -0.5197207 -1.4197208 -0.5197209 -1.4197210 -0.9197211 -0.3197212 -1.3197301 -0.3197302 -1.4197303 0.7197304 0.1197305 0.4197306 1.1197307 0.6197308 1.3197309 1.2197310 0.8197311 2.6197312 1.8197401 2.4197402 2.1197403 2.4197404 0.9197405 1.0197406 0.4197407 1.1197408 0.8197409 1.1197410 0.9197411 -0.1197412 0.2197501 -0.5197502 0.8197503 1.6197504 1.2197505 0.6197506 1.3197507 1.9197508 2.0197509 2.1197510 1.7197511 1.2197512 2.1197601 1.4197602 1.7197603 1.7197604 0.3197605 0.4197606 0.3197607 -0.9197608 -0.8197609 -1.1197610 0.4197611 0.7197612 -0.3197701 -0.4197702 1.2197703 -0.5197704 -0.4197705 -0.5197706 -0.9197707 -1.1197708 -0.8197709 -0.8197710 -1.0197711 -1.3197712 -1.1197801 -0.3197802 -2.7197803 -0.2197804 -0.3197805 1.4197806 0.7197807 0.6197808 0.4197809 0.1197810 -0.4197811 0.0197812 -0.1197901 -0.4197902 1.0197903 0.1197904 -0.1197905 0.5197906 0.6197907 1.3197908 -0.2197909 0.1197910 -0.1197911 -0.4197912 -0.7198001 0.4198002 0.3198003 -0.4198004 -0.6198005 0.0198006 0.0198007 0.0198008 0.4198009 -0.5198010 0.0198011 -0.3198012 -0.1198101 0.4198102 -0.2198103 -1.3198104 -0.1198105 0.8198106 1.2198107 0.8198108 0.7198109 0.3198110 -0.4198111 0.2198112 0.5198201 1.2198202 0.3198203 0.6198204 0.1198205 -0.3198206 -1.0198207 -1.5198208 -1.7198209 -1.7198210 -1.7198211 -2.6198212 -2.2198301 -3.5198302 -3.6198303 -2.4198304 -0.9198305 0.6198306 0.0198307 -0.6198308 0.1198309 0.9198310 0.4198311 -0.1198312 0.0198401 0.2198402 0.9198403 -0.2198404 0.3198405 0.2198406 -0.3198407 0.2198408 0.4198409 0.1198410 -0.3198411 0.3198412 -0.1198501 -0.3198502 1.2198503 0.8198504 1.2198505 0.4198506 -0.4198507 -0.1198508 1.0198509 0.0198510 -0.4198511 -0.2198512 0.2198601 1.0198602 -1.0198603 0.5198604 0.3198605 -0.2198606 1.0198607 0.3198608 -0.4198609 -0.5198610 0.6198611 -1.2198612 -1.4198701 -0.7198702 -1.2198703 -1.3198704 -1.4198705 -1.3198706 -1.1198707 -1.4198708 -0.9198709 -1.0198710 -0.4198711 0.0198712 -0.5198801 -0.1198802 -0.4198803 0.6198804 0.1198805 0.9198806 0.1198807 1.0198808 1.5198809 1.8198810 1.4198811 1.7198812 1.2198901 1.5198902 1.2198903 1.1198904 1.6198905 1.2198906 0.7198907 0.9198908 -0.3198909 0.5198910 0.8198911 -0.2198912 -0.5199001 -0.1199002 -1.8199003 -0.4199004 0.2199005 1.2199006 0.3199007 0.5199008 -0.2199009 -0.7199010 0.3199011 -0.5199012 -0.2199101 0.6199102 0.3199103 -0.7199104 -0.6199105 -1.0199106 -0.1199107 0.0199108 -0.4199109 -1.5199110 -1.0199111 -0.7199112 -1.8199201 -2.9199202 -0.9199203 -2.0199204 -1.0199205 0.3199206 -0.6199207 -0.6199208 0.4199209 0.1199210 -1.4199211 -0.7199212 -0.6199301 -0.9199302 -0.7199303 -0.5199304 -1.2199305 -0.3199306 -0.8199307 -0.8199308 -0.9199309 -0.7199310 -1.1199311 -0.1199312 0.2199401 -0.1199402 0.3199403 -0.7199404 -1.3199405 -0.7199406 -0.4199407 -1.3199408 -1.2199409 -1.6199410 -1.1199411 -0.6199412 -1.2199501 -0.4199502 -0.1199503 0.8199504 -0.7199505 -0.4199506 0.1199507 0.4199508 0.3199509 0.3199510 0.0199511 0.0199512 -0.5199601 1.0199602 0.3199603 1.1199604 0.8199605 0.3199606 1.2199607 0.7199608 0.7199609 0.6199610 0.6199611 -0.1199612 0.9199701 0.5199702 1.7199703 -0.4199704 -0.6199705 -1.3199706 -1.4199707 -0.8199708 -1.4199709 -1.4199710 -1.5199711 -1.2199712 -1.0199801 -2.7199802 -2.0199803 -2.4199804 -1.4199805 0.3199806 1.0199807 1.2199808 1.2199809 1.0199810 1.1199811 1.0199812 1.4199901 1.8199902 1.0199903 1.3199904 1.4199905 0.2199906 0.3199907 0.5199908 0.4199909 -0.1199910 1.0199911 1.0199912 1.4200001 0.7200002 1.7200003 1.3200004 1.2200005 0.4200006 -0.2200007 -0.2200008 0.7200009 0.9200010 1.1200011 1.8200012 0.8200101 1.0200102 1.7200103 0.9200104 0.2200105 -0.5200106 0.3200107 -0.2200108 -0.4200109 0.2200110 0.0200111 0.7200112 -0.8200201 0.4200202 1.1200203 -0.2200204 -0.1200205 -0.8200206 -0.2200207 -0.5200208 -1.0200209 -0.6200210 -0.4200211 -0.5200212 -1.1200301 -0.2200302 -0.7200303 -0.3200304 -0.1200305 -0.3200306 -0.6200307 0.3200308 0.1200309 -0.1200310 0.0200311 -0.3200312 1.1200401 -1.3200402 1.2200403 0.4200404 -0.9200405 1.0200406 -0.8200407 -0.5200408 -0.3200409 -0.3200410 -0.1200411 -0.7200412 -0.8200501 0.3200502 -3.1200503 0.3200504 -0.6200505 -0.8200506 0.4200507 0.2200508 -0.3200509 0.4200510 1.2200511 -0.2200512 0.0200601 1.7200602 0.1200603 1.8200604 1.1200605 -0.5200606 -0.2200607 -0.6200608 -1.0200609 -0.6200610 -1.3200611 0.1200612 -0.3200701 -0.8200702 -0.1200703 0.2200704 -0.1200705 -0.1200706 0.5200707 -0.3200708 0.4200709 0.2200710 0.7200711 0.9200712 1.7200801 1.8200802 2.6200803 1.4200804 0.7200805 -0.1200806 0.6200807 0.3200808 1.0200809 1.2200810 1.3200811 1.3200812 1.4200901 1.1200902 1.9200903 0.4200904 0.8200905 -0.1200906 0.1200907 0.2200908 -0.2200909 0.3200910 -1.2200911 -0.6200912 -0.7201001 -1.1201002 -1.5201003 -0.7201004 1.2201005 0.9201006 0.4201007 1.8201008 1.8201009 2.2201010 1.7201011 1.3201012 2.9201101 2.3201102 2.7201103 2.5201104 1.9201105 0.4201106 0.2201107 1.0201108 0.4201109 1.0201110 0.8201111 1.1201112 2.5201201 1.1201202 0.5201203 0.7201204 -0.3201205 0.0201206 -0.4201207 0.0201208 -0.2201209 0.2201210 0.3201211 0.3201212 -0.6201301 -0.1201302 -0.2201303 1.5201304 0.2201305 0.8201306 1.2201307 0.8201308 0.2201309 0.3201310 -0.1201311 0.7201312 0.1201401 1.4201402 0.1201403 -0.9201404 0.8201405 0.5201406 0.2201407 -0.2201408 -0.7201409 -0.7201410 -0.6201411 -0.9201412 -0.6201501 -0.8201502 0.2201503 -0.7201504 0.0