Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1982	277.7	181.3	241.7	55.4	62.3	0	0	0	0	24.5	147	281.6
1983	275.4	132.7	242.2	76.1	27.9	0	0	0	0	26.5	42	231.3
1984	451.4	196.5	213.5	52.3	4.6	1.4	6.8	0	0	0	127.3	130
1985	150.2	254.6	116.1	74.8	6.3	1.4	5.7	1	3.1	0	142.7	166.8
1986	427.1	170.5	244.5	86.5	2.7	2.7	0	0	0	11.3	59	342.9
1987	283.3	219.2	258.4	57.2	0	0	0	0	0	8.8	1.5	106.2
1988	226.8	138.2	129	42.5	1.1	0	0	0	0	1.6	42.9	133.2
1989	361	138.1	368.6	168.6	19.1	0	0	0	0	0	93.9	136.1
1990	151.8	140	140.9	100.8	15.4	0	3.4	0.2	0.8	7.2	74.1	210.6
1991	504.1	82.9	325.5	167.6	8	0	3.9	2.6	3.2	0	59.1	216
1992	162.1	193.9	225.9	60	12.3	3.9	0	0	0	0	134.2	105.6
1993	174.4	337.7	304.6	115.9	21.6	0	0	0.7	0	9	18.8	34.5
1994	339.8	226	359.7	44.2	0.2	1.4	0	1.7	0	5.7	27.5	133.6
1995	296.8	268.8	242.6	54.2	4.8	0	0	4.3	0	0	1.1	130.9
1996	140.7	451.1	274.3	70.9	22.8	0	0.2	0	0	0.3	9.2	210.3
1997	190.4	317.5	51.2	66.6	0	10.7	0	0	0	2.6	9.8	223.8
1998	336.9	191.2	207.1	66.5	1.4	0	0	0.4	19.2	1.2	43.6	29.2
1999	185.4	191.7	294.5	175.9	15.3	0	0	2	2.7	2.8	10	121.3
2000	191.4	162.7	189.3	120.6	11.4	1	0	3.1	0	0	293.9	618.5
2001	269.4	118.5	290.5	52.4	20.4	0	0	0	1.3	0	10.4	128.1
2002	360	192.8	298	116.3	1.7	2	0	0	0.2	1.1	87.2	198.3
2003	160.3	226.1	254.6	67.2	12.8	0	0	0.7	0	0	22.9	217.7
2004	218.5	214.4	160.6	128.2	0	1.6	0	0	0	2.7	125	246.4
2005	152.5	112	257.7	51.9	38	6.1	0	0	0	0.6	0	97.3
2006	140	170.9	177.7	194.6	2.1	0	3.3	2.4	0.7	0	92.2	390.1
2007	301.8	229	211.4	69.3	22.7	0	1.9	1	1.1	43	13.6	285.4
2008	222.1	298.6	168.8	58.5	14.8	0	0	5.1	0	1.3	73.6	162.8
2009	202.3	195.7	204.4	53.2	0.3	0	0	0	0	0.3	91.2	132.3
2010	326.1	230.9	151.1	67	15.4	2.3	0	1.4	0	2.1	0.3	159
2011	223.4	339	243.6	97.7	11.2	0.5	0	0.5	8.8	40	52.2	144
2012	286.7	111.4	172.2	58.6	12.3	0	0.2	0	0	0	82.7	171.9