FULLNET COMMUNICATIONS INC (FULO) › Operating IncomeFULLNET COMMUNICATIONS INC (FULO) — Operating IncomeAnnual figures by fiscal year, from SEC filings.2010: -$329.0K2011: $52.2K2012: -$200.5K2013: -$158.0K2014: -$152.0K2015: -$38.3K2016: $61.1K2017: $78.9K2018: -$14.8K2019: $200.5K2020: $730.1K2021: $1.17M2022: $830.2K2023: $512.2K$512.2K2010Operating Income (USD)2023Fiscal YearOperating IncomeChange YoY2023$512.2K-38.3%2022$830.2K-29.2%2021$1.17M+60.7%2020$730.1K+264.2%2019$200.5K+1457.3%2018-$14.8K-118.7%2017$78.9K+29.2%2016$61.1K+259.6%2015-$38.3K+74.8%2014-$152.0K+3.8%2013-$158.0K+21.2%2012-$200.5K-484.0%2011$52.2K+115.9%2010-$329.0K—Other metrics: RevenueCost of RevenueGross ProfitNet IncomeEPS (Diluted)Total AssetsTotal LiabilitiesShareholders' EquityCash & EquivalentsOperating Cash FlowCapital ExpendituresShares OutstandingDividends Per Share