Electricity Source:Electricity Generation;Coal:0;Natural Gas:0;Nuclear:0;Hydroelectricity:0;Wind:0;Biomass:0;Other:0;Petroleum:0;Geothermal:0;Solar:0;%Iowa -  ( TWh)|Year:Total:Coal:Natural Gas:Nuclear:Hydroelectricity:Wind:Biomass:Other:Petroleum:Geothermal:Solar;1990:30.044506:25.751941:0.33339:3.011572:0.875114:0:0.018018:0:0.054471:0:0;1991:32.267856:26.756771:0.388004:4.146811:0.901111:0:0.025267:0:0.049892:0:0;1992:30.496927:25.763013:0.269011:3.405144:0.999665:0:0.020009:0:0.040085:0:0;1993:32.049013:27.531644:0.448989:3.235009:0.747182:0:0.029264:0:0.056925:0:0;1994:33.167006:27.450892:0.376485:4.107383:1.071023:5.3E-5:0.05938:0:0.10179:0:0;1995:34.752928:29.409704:0.479889:3.72997:1.002974:0.000117:0.064413:0:0.065861:0:0;1996:34.688615:29.34295:0.349467:3.923631:0.935333:0.000108:0.069721:0:0.067405:0:0;1997:35.41894:29.833225:0.437691:4.149111:0.804944:0.000118:0.103659:0:0.090192:0:0;1998:38.448789:32.999971:0.560892:3.767513:0.912915:8.9E-5:0.090866:0:0.116543:0:0;1999:38.801481:33.154236:0.507375:3.640258:0.945622:0.326354:0.091183:0:0.136453:0:0;2000:41.54201:35.067093:0.433764:4.452884:0.90401:0.49382:0.088562:0:0.101877:0:0;2001:40.658512:34.665095:0.592852:3.852722:0.845154:0.487864:0.103748:0.008449:0.102628:0:0;2002:42.528384:35.372058:0.554719:4.573958:0.946383:0.918835:0.098333:0.000234:0.063864:0:0;2003:42.116192:35.819945:0.312896:3.987657:0.788593:0.98197:0.11417:0.009625:0.101336:0:0;2004:43.248189:35.272196:0.824706:4.928948:0.945959:1.049952:0.105926:0.011883:0.10862:0:0;2005:44.15616:34.252334:2.48087:4.538313:0.959526:1.647134:0.116842:0.011573:0.149568:0:0;2006:45.483462:34.405194:2.400014:5.095442:0.909348:2.317821:0.136896:0.010426:0.208321:0:0;2007:49.789217:37.985566:3.090879:4.518875:0.962346:2.756676:0.1511:0.011861:0.311915:0:0;2008:53.086786:40.410107:2.163191:5.282202:0.819047:4.083787:0.167313:1.3E-5:0.161127:0:0;2009:51.860063:37.351436:1.184217:4.678931:0.971165:7.42052:0.168081:0.000463:0.085251:0:0;2010:57.508721:41.282937:1.312195:4.45064:0.948168:9.170337:0.190146:0:0.154297:0:0;2011:56.37191265:38.22935998:0.99118261:5.215229:0.925352:10.70917691:0.16059171:0:0.14102044:0:0;2012:56.67540392:35.33135111:1.94088561:4.346995:0.766191:14.03249063:0.15093351:0:0.10655706:0:0;