<prompt> Translate the following text to EnglishWakati mapungufu ya serikali ya shirikisho yalipungua katika miaka ya 1990, uwekezaji wa shirikisho katika mali halisi zisizo za ulinzi ulibaki sawa kama sehemu ya Pato la Taifa.  <response>: 22 As federal unified deficits declined over the 1990s, federal investment in nondefense physical assets remained relatively constant as a share of GDP. 