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 6 7 8 9 10 11 12 13 1990 23555 10022 18703 12310 19162 28052 10254 21140 40538 44747 38341 33675 25719 1995 22241 10842 15696 11409 17326 26238 8443 17922 34714 35614 31368 27990 29371 1996 27613 15511 20875 16824 20509 26483 9536 17804 37752 45460 39827 27702 35184 1997 23579 12525 18074 13710 18134 23309 8589 16027 34192 42851 35245 24529 28361 1998 21673 9538 17091 11201 19982 30124 9044 19938 36621 41617 37451 27926 27313 1999 19133 7690 14586 10009 18237 26137 8296 18122 34648 36602 33802 29320 24083 2000 23380 9219 17947 11525 19945 27660 10541 19124 36850 45257 39617 33080 25419 2001 20696 10908 16321 12868 18385 27420 7630 19299 30396 35628 32447 26555 25367 2002 21095 11271 16161 12894 18664 23728 7533 16438 30499 38748 33072 23363 24367 2003 21145 10567 14474 10016 15230 20875 8442 14343 35317 32976 27662 25745 25176