Time series of reduced nitrogen depositions to main regions of the OSPAR maritime area Year/Region 1 2 3 4 5 6 7 8 9 10 11 12 13 1980 15521 9416 11552 10602 13933 22574 8029 22988 23054 21781 19211 26482 36788 1985 13081 5620 10902 11427 15820 25848 7585 23475 22397 24956 22202 32965 35181 1990 9993 4193 8998 8993 12582 20759 6047 18198 20054 19912 16742 26997 24743 1995 10269 5265 8285 8955 12639 20665 5357 16492 18531 17845 15672 21577 31168 1996 14556 8326 10963 11727 13374 19948 6391 16052 20436 22543 20323 21583 33844 1997 10964 6318 9423 10088 13596 21138 5984 16877 18805 22757 20025 19627 34077 1998 11013 5275 9242 9277 15645 24549 6188 19457 20513 21589 19398 23593 33660 1999 10005 3763 8846 8876 15026 22233 5089 16935 20132 19811 18310 23313 31668 2000 11650 4014 9983 9521 17048 25733 7570 20744 20626 26031 24255 28559 37057 2001 10103 5458 8547 9625 14042 22200 5340 19273 15684 18327 18396 21574 31150