{
 "observed": [
  [
   1980,
   37.92
  ],
  [
   1981,
   36.95
  ],
  [
   1982,
   32.95
  ],
  [
   1983,
   29.81
  ],
  [
   1984,
   28.74
  ],
  [
   1985,
   27.62
  ],
  [
   1986,
   14.47
  ],
  [
   1987,
   18.41
  ],
  [
   1988,
   14.96
  ],
  [
   1989,
   18.23
  ],
  [
   1990,
   23.71
  ],
  [
   1991,
   20.08
  ],
  [
   1992,
   19.36
  ],
  [
   1993,
   17.08
  ],
  [
   1994,
   15.96
  ],
  [
   1995,
   17.2
  ],
  [
   1996,
   20.81
  ],
  [
   1997,
   19.31
  ],
  [
   1998,
   13.13
  ],
  [
   1999,
   18.11
  ],
  [
   2000,
   28.85
  ],
  [
   2001,
   24.71
  ],
  [
   2002,
   25.12
  ],
  [
   2003,
   28.78
  ],
  [
   2004,
   38.23
  ],
  [
   2005,
   54.68
  ],
  [
   2006,
   65.6
  ],
  [
   2007,
   72.65
  ],
  [
   2008,
   97.33
  ],
  [
   2009,
   61.58
  ],
  [
   2010,
   79.81
  ],
  [
   2011,
   111.54
  ],
  [
   2012,
   112.01
  ],
  [
   2013,
   108.96
  ],
  [
   2014,
   99.35
  ],
  [
   2015,
   53.02
  ],
  [
   2016,
   45.08
  ],
  [
   2017,
   54.89
  ],
  [
   2018,
   71.61
  ],
  [
   2019,
   64.2
  ],
  [
   2020,
   43.33
  ],
  [
   2021,
   70.83
  ],
  [
   2022,
   99.0
  ],
  [
   2023,
   82.32
  ],
  [
   2024,
   79.91
  ],
  [
   2025,
   68.32
  ]
 ],
 "projected": [
  [
   2025,
   68.32
  ],
  [
   2026,
   80.19
  ],
  [
   2027,
   71.45
  ],
  [
   2028,
   69.69
  ],
  [
   2029,
   69.42
  ],
  [
   2030,
   69.36
  ],
  [
   2031,
   69.13
  ]
 ],
 "spot_reference": {
  "year": 2026,
  "value_usd_bbl": 108.0,
  "note": "Reported spot level, September 2026 (news reports); not a dataset value."
 }
}