Time series of nitrogen oxides depositions to
  main regions of the OSPAR maritime area in t N/year

 Year/Region         1         2         3         4         5
   1990           301083    326370     70371    109115    408494
   1995           252730    289114     76413    102723    401927
   1996           323908    341096    101945    123085    478853
   1997           263879    299157     84885    101813    434450
   1998           200858    309645     66299    105693    349990
   1999           225428    280805     58812    100760    339136
   2000           231054    319714     58842     94423    325731
   2001           217781    283995     66936    102951    372491
   2002           244074    277883     71298    104553    352423
   2003           277116    261965     76173    106999    366735