佯邃� 羿牝铕钼 怆��桴 磬 玟铕钼 溴蝈� � 镱漯铖蜿钼 磬 钿眍� 桤 镥疴 戾耱 磬躅滂蝰� 恹耦赅� 疣耧痤耱疣礤眄铖螯 襦祛疣琊篪帼� 忤漕� 镱忮溴龛�, 蜞觇�, 赅� 镱蝠遽脲龛� 锺桴钹牝桠睇� 忮耱�. � 疋�玷 � 桁 桧蝈疱耥 �怆�弪�� 桤篦屙桢 疣耧痤耱疣礤眄铖蜩 箫铗疱犭屙�� 锺桴钹牝桠睇� 忮耱�, � 鬣耱眍耱� 牦疱龛� 蜞徉赅 耩邃� 铍桕钼, 桴 铗眍龛� � 铋 镳钺脲戾, 囗嚯桤 翦牝桠眍耱� 镳钼钿桁铋 镳铘桦嚓蜩麇耜铋 疣犷螓. 洛潼 犷朦眈蜮� 牦痂朦觐� 镳桀狴帼蝰� � 怵邃眍� 镳桠赍 漕 18 脲� - 潆� 蓄耨梃 � 镱赅玎蝈腓 耦耱噔�� 80% � 祗骥桧 � 50% � 驽睐桧 (�.�.毋囗钼 � 漯.,1998). � 牮噱 疣礤� 镳钼钿桦桉� 恹犷痤黜 桉耠邃钼囗�� 铖钺屙眍耱彘 镱蝠遽脲龛� 锺桴钹牝桠睇� 忮耱� 铍桕囔� 7, 9 -11 觌囫耦� (�.�.暑桧� � 漯., 1997 -1999; �.�.暑殛钼� � 漯., 2000).
� 疣礻圊 溧眄钽� 桉耠邃钼囗�� 猁腩 镳钼邃屙� 耧腩铄 囗铐桁眍� 囗赍蜩痤忄龛� 篦帙桴�� 8 耩邃龛� 钺钺疣珙忄蝈朦睇� 铍 �. 署囫眍溧疣 � 5 镱 11 觌囫覃 怅膻麒蝈朦眍 � 磬鬣脲 篦遽眍泐 2002-2003 泐溧. � 疱珞朦蜞蝈 耱囹桉蜩麇耜铋 钺疣犷蜿� 囗赍� 镱塍麇睇 耠邃簋� 溧眄.
� 铒痤皴 镳桧�腓 篦囫蜩� 5008 麇腩忮� (49,12% 铠彘 � 50,88% 溴怏�), 桤 龛� � 5 觌囫皴 篦栩� 10,66% 铒痤眄, � 6 - 10,82%, � 7 - 17,19%, � 8 - 15,56%, � 9 - 19,33%, � 10 -14,12%, � 11 - 12,32% 疱耧铐溴眚钼.
鼠��� 蜞徉� 12,20% 铒痤眄 (15,41% 铠彘 � 9,11% 溴怏�), 桤 龛�: � 5 觌囫皴 3,56% ��蜩觌囫耥桕钼 (2,76% 铠彘 � 4,51% 溴怏�), � 6 觌囫皴 - 6,83% (7,43% � 6,23%), � 7 -5,92% (8,07% � 3,61%), � 8 - 6,16% (8,79% � 3,57%), � 9 - 17,77% (23,08% � 12,53%), � 10 - 17,68% (22,98% � 13,57%), � 11 - 25,77% (35,61% � 17,70% 耦铗忮蝰蜮屙眍). 昨� 疋桎弪咫蜮箦� � 恹耦觐� 疣耧痤耱疣礤眄铖蜩 牦疱龛� 溧驽 耩邃� 祀噤� 铍桕钼.
阻耠� 恹牦痂忄屐 耔汔疱� � 溴睃 耩邃� 铍桕钼 � 26% 耦耱噔��弪 铗 5 漕 10, � 25% 铗 1 漕 2 耔汔疱� � � 24% 铗 2 漕 5. 青 溴睃 27% 溴怏� 恹牦痂忄 铗 5 漕 10 耔汔疱�, 25% 铗 1 漕 2, � 20% 铗 2 漕 5 耔汔疱�. � 26% 爨朦麒觐� 镳邃镱麒蜞 牦痂螯 铗 2 漕 5 耔汔疱� � 溴睃, 25% 桤 龛� 铗 1 漕 2 � 24% 恹牦痂忄 铗 5 漕 10 � 溴睃. 佯邃� 牦��� 篦帙桴�� 5, 6, 7, 8-� 觌囫耦� 镱矬��疱� 铗忮� «牦瘙 铗 1 漕 2-� 耔汔疱� � 溴睃» (46%, 48%, 47%, 30% 耦铗忮蝰蜮屙眍). � 牦��� 篦帙桢�� 9, 10, 11-� 觌囫耦� 鬣 恹徼疣腓 铗忮� «牦瘙 铗 5 漕 10 耔汔疱� � 溴睃» (29%, 33%, 32%). 橡邃镱麒蜞 牦痂螯 1 镟麝� � 溴睃 16% 怦艴 铒痤眄 铍桕钼 (8% 桤 牦��� 蜞徉� � 6 觌囫襦�, 14% � 7 觌囫皴, 19% � 8 觌囫襦�, 19% � 9 觌囫襦�, 10% � 10 觌囫襦�, 20% � 11 觌囫襦�).
痒栩帼�, 黩� 牦疱龛� 怵邃眍 潆� 玟铕钼�� 74% 礤牦��� (71% 爨朦麒觐� � 77% 溴忸麇�) � 蝾朦觐 57% 牦��� 蜞徉� (57% � 58%) 铍桕钼, 黩� 疋桎弪咫蜮箦� � 礤恹耦觐� 桧纛痨桊钼囗眍耱� 铍桕钼 � 镱耠邃耱忤�� 箫铗疱犭屙�� 蜞徉黜 桤溴腓� � 龛珀铋 翦牝桠眍耱� 耔耱屐� 钺篦屙�� 磬恹赅� 玟铕钼钽� 钺疣玎 骅珥�.
悟忮鬣� 磬 忸镳铖 «忸珥桕帼� 腓 � 蝈�� 镳钺脲禧 � 镳桀狃弪屙梃 耔汔疱� � 嚯觐泐朦睇� 磬镨蜿钼 � 爨汔玷磬�», 耩邃� 牦��� 铍桕钼 蝾朦觐 9% 箨噻嚯� 铗忮� «溧», � 52% 铗戾蜩腓 铗忮� - «礤�», � «桧钽溧» 腓 � 24% .亦觇� 钺疣珙�, 镳钿铍驵弪 铖蜞忄螯�� 恹耦赅� 漕耱箫眍耱� 蜞徉黜 桤溴腓� 潆� 礤耦忮瘌屙眍脲蝽桴, 礤耢铗�� 磬 忖邃屙睇� 玎觐眍溧蝈朦睇� 戾痤镳��蜩�.
令朦眈蜮� 篦帙桢�� � 5, 6, 7 � 10 觌囫襦� 聍栩帼�, 黩� 桴 痤滂蝈腓 礤 珥帼� � 蝾�, 黩� 铐� 牦��� (77%, 52%, 50% � 42% 耦铗忮蝰蜮屙眍). � 8, 9 � 11 觌囫襦�, 铍桕� 潴爨, 黩� 痤滂蝈腓 漕汔潲忄�� � 蝾�, 黩� 铐� 牦��� (35%, 33% � 32%). 喻屙桕钼 麒� 痤滂蝈腓 珥帼� � 蝾�, 黩� 铐� 牦��� 蝾朦觐 18% � 6-� 觌囫襦�, 23% 耩邃� 8-� 觌囫襦�, 20% � 9-� 觌囫襦�, 32% � 10-� � 37% � 11-� 觌囫襦�, �怆�邋�� 镱赅玎蝈脲� 龛珀铋 桧纛痨桊钼囗眍耱� 痤滂蝈脲� � 镳钺脲爨� 桴 溴蝈�.